Targeting Keywords for Meta Elements
By placing keywords into a meta element within your documents (a common practice), you enable search engines looking for this information to catalog your keywords quickly. Keywords can help with ranking because you are able to catalog your site based on descriptive words or series of words that define your site as well as reflect [...]
Complete Guide to Web Site Marketing
What if you created a Web site and nobody came? You don’t want your sites to end up obscure and unused. No doubt you’veread about meta tags and how they can help your sites get ranked better; and just about everyone using the Web is aware of the annoyances related to Web advertising. But these issues are just the tip of the iceberg. Read any Web site dedicated to Web promotions and you’ll see all kinds of topics, often controversial ones.

This article lets you in on the insider’s view of why so many Web marketing methods are problematic, and shows you the right way to use common techniques such as keyword and description tagging, how to expand and extend keywords within your content, how to get submitted to search engines in a timely fashion, how to get the word out to interested parties, and how to increase interest via sponsored links and offline promotional opportunities.
I will not teach you how to spam, use annoying ads, or compromise the integrity of the products and services you represent. Just apply a balance between great Web site design and customer service and you will never have to rely on gimmicks.
Posted on Jul 02, 2009 - Web Development
Baby Sites to Make You Smile
The www.mori.us Web site, shown in Figure, features photos and stories from everyone in the Mori family, but there’s no question that the children are the stars of the show. In addition to a photo gallery and guest book, the Moris have included a section called Jared’s Anecdotes filled with fun stories about their son. Visit the site to see a great example of a clean, simple design, with lots of great photos and clever stories about the kids.

Posted on Jun 30, 2009 - Web Design
Protecting Your Privacy
Many parents wonder whether it is safe to put their children’s photos on the Web; others simply don’t want to share their stories with the world for fear that they may attract unwanted attention. Although there have been some highly publicized cases of children running into trouble because of someone they met online, such incidents are rare. I consider a child’s photo appearing on a Web page to be roughly equivalent to his or her image appearing in a school yearbook or in a sports team photo in a local newspaper.

Posted on Jun 28, 2009 - Web Design
Photo Album and Printing Services
If you’re looking for an easy way to share photos online, but you still think it’s nice to have a physical, tangible photo printed on paper, you may be happy to discover the services listed in this sidebar, which provide both free online photo album services and an easy way for you — or anyone else with access to your photo album — to order prints.
To create a photo album, you just upload your images; they become instantly available on the Web to anyone with your user ID and password. (Passwords are required to ensure privacy so you can restrict who views your personal
images.) You don’t even have to optimize your images (optimizing involves reducing the file size of images so they download faster), so you won’t need an image program such as Photoshop. Indeed, sites such as Ofoto and Shutterfly encourage you to upload high-resolution images because the better the resolution, the better the print quality.
Posted on Jun 27, 2009 - Web Design
Touring Family Web Sites
As photo albums turn digital and e-mail addresses become commonplace, modern families are building their own Web sites, contributing to an increasingly popular part of the Internet where you can find everything from elaborate wedding invitations to vacation pictures to the first photo of a newborn.
You don’t need advanced computer skills anymore to create a family Web site. Today, sharing photos online is as easy as pressing the Enter key to upload images to a photo site. And you can create a wedding or baby site by simply filling out a form. Even if you want to create a customized Web site, the software programs and resources available now make it easier than ever to personalize the way you share family stories and memories over the Internet.

Posted on Jun 27, 2009 - Web Design
The Modeling Approach Java Programs
A model is a simplified representation of the real world and, as such, includes only those aspects of the real-world system relevant to the problem at hand. For example, a model airplane, used in wind tunnel tests, models only the external shape of the airplane. The power of the airplane engines, the number of seats and its cargo capacity do not affect the plane’s aerodynamic properties. Models are widely used in engineering since they can be used to focus on a particular aspect of a real-world system such as the aerodynamic properties of an airplane or the strength of a bridge. The reduction in scale and complexity achieved by modeling allows engineers to analyze properties such as the stress and strain on the structural components of a bridge. The earliest models used in engineering, such as airplane models for wind tunnels and ship models for drag tanks, were physical. Modern models tend to be mathematical in nature and as such can be analyzed using computers.
This article takes a modeling approach to the design of concurrent programs. Our models represent the behavior of real concurrent programs written in Java. The models abstract much of the detail of real programs concerned with data representation, resource allocation and user interaction. They let us focus on concurrency. We can animate these models to investigate the concurrent behavior of the intended program. More importantly, we can mechanically verify that a model satisfies particular safety and progress properties, which are required of the program when it is implemented. This mechanical or algorithmic verification is made possible by a model-checking tool LTSA (Labeled Transition System Analyzer). Exhaustive model checking using LTSA allows us to check for both desirable and undesirable properties for all possible sequences of events and actions. LTSA is available from the World Wide Web (http://www.wileyeurope.com/college/magee). As it has been implemented in Java, it runs on a wide range of platforms, either as an applet or as an application program.
Posted on Jun 25, 2009 - Java Programming
Concurrency—State Models & Java Programs
Between June 1985 and January 1987, a computerized radiation therapy machine called Therac-25 caused six known accidents involving massive overdoses with resultant deaths and serious injuries. Although most accidents are systemic involving complex interactions between various components and activities, and Therac-25 is not an exception in this respect, concurrent programming errors played an important part in these six accidents. Race conditions between different concurrent activities in the control program resulted in occasional erroneous control outputs. Furthermore, the sporadic nature of the errors caused by faulty concurrent programs contributed to the delay in recognizing that there was a problem. The designers of the Therac-25 software seemed largely unaware of the principles and practice of concurrent programming.
The wide acceptance of Java with its in-built concurrency constructs means that concurrent programming is no longer restricted to the minority of programmers involved in operating systems and embedded real-time applications. Concurrency is useful in a wide range of applications where responsiveness and throughput are issues. While most programmers are not engaged in the implementation of safety critical systems such as Therac-25, increasing numbers are using concurrent programming constructs in less esoteric applications. Errors in these applications and systems may not be directly life-threatening but they adversely affect our quality of life and may have severe financial implications. An understanding of the principles of concurrent programming and an appreciation of how it is practiced are an essential part of the education of computing science undergraduates and of the background of software engineering professionals. The pervasive nature of computing and the Internet makes it also an important topic for those whose primary activity may not be computing but who write programs none the less.
Posted on Jun 25, 2009 - Java Programming
Ethical Hacking versus Malicious Hacking
Ask any developer if he has ever hacked. Ask yourself if you ever been a hacker. The answers will probably be yes.We have all hacked, at one time or another, for one reason or another. Administrators hack to find shortcuts around configuration obstacles. Security professionals attempt to wiggle their way into an application/database through nintentional (or even intentional) backdoors; they may even attempt to bring systems down in various ways. Security professionals hack into networks and applications because they are asked to; they are asked to find any weakness
that they can and then disclose them to their employers.They are performing ethical hacking in which they have agreed to disclose all findings back to the employer, and they may have signed nondisclosure agreements to verify that they will NOT disclose this information to anyone else. But you don’t have to be a hired security professional to
perform ethical hacking. Ethical hacking occurs anytime you are “testing the limits” of the code you have written or the code that has been written by a co-worker. Ethical hacking is done in an attempt to prevent malicious attacks from being successful.
Posted on Jun 01, 2009 - Hacking
What Motivates a Hacker?
Notoriety, challenge, boredom, and revenge are just a few of the motivations of a hacker. Hackers can begin the trade very innocently. Most often they are hacking to see what they can see or what they can do. They may not even realize the depth of what they are attempting to do. But as time goes on, and their skills increase, they begin to realize the potential of what they are doing.There is a misconception that hacking is done mostly for personal gain, but that is probably one of the least of the reasons.
Posted on Jun 01, 2009 - Hacking

