In layman language Web 2.0 means the second generation of web development. The first generation web development is considered to be the great dot-com bubble of late 90's and the rupture of which around late 2001 triggered ubiquitous reactions that the Web was over hyped. Concept of second generation of Web development started after a media conference between O'Reilly and MediaLive International. In this brainstorming session it was realized that the web has thrown up more interesting applications and Web technology has emerged more important that ever and the word Web 2.0 was coined. Web 2.0 is a business revolution making a bent towards the web as a platform. Web 2.0 doesn't have a definite boundary and there are several things encompassing a core. Web 2.0 is visualized as principles and collection of numerous sites running on those principles at some distance from the core.

Since then Web 2.0 has remained a top level discussion for proper definition and boundary that is yet to be reached. One can simply say blogs, social bookmarking, wikis, podcasts, RSS feeds, and lightweight business over a single platform. Web is no more one way, now uploading, and downloading of information happens simultaneously, sharing and distributing contents across networks leveraging the power of "Long Tail".

Web 2.o includes numerous practices. Here are some typically implemented practices by websites:

• Well-off internet applications based on Flex or Ajax.
• This intend to allow information intended for end-users, such as contact information, calendar events, geographic coordinates, content life, social relationships etc
• Presentation is separated from content through Cascading Style Sheets (CSS).
• High-end APIs (Application programming interfaces).
• Content Syndication through RSS or Atom.
• Facility for content creation through users, also by machines from client side or server side.

Content Syndication: Syndicating partial or whole content through standard protocols such as RSS, Atom, and RDF by using XML so as to be used by the end-users for their need.

Some misconceptions on Web 2.0:

• Curvy designs (This curvy structures became widely popular at the same time, designers also started making more websites with this cool looking styles)
• Use of Ajax or Flex (Which happens to come in the same time of Web 2.0, No doubt that websites with web 2.0 architecture needs these to work well.)

Web 2.0 is not an alien to criticism and had its fair share. Here are some criticisms leveled at Web 2.0

• Web 2.0 is not a new version of World Wide Web at all. It merely uses the technologies and architectures of Web 1.0.
• Ajax is not substituting the HTML protocol; it's an additional layer over HTML.
• Blogs or social networking was features of Amazon.com since 1995 when the word called Web 2.0 dint exist. It's way more than only blogs and social networking.

In any type of sales if you're not tracking your leads, your sales, your conversion rates, etc. then you are missing out on an opportunity to expand and grow your business; in the Internet Marketing world this is especially true.

There are plenty of free tools on the Internet nowadays that allow you to see how many visitors you are getting, what geographic location they are in and 'how' they got to your website. The 'how' they got to your site is the most important question of all.

You may be getting 500 visitors a month of which 300 may be coming from advertising source 'A' with another hundred coming from advertising source 'B' and yet another 50 visitors coming from advertising source 'C' with the rest coming in small increments of 1-5 from different ads that you've placed on the Internet.

One good reason to track your website visitors is it lets you know whats working in contrast to that which is barely working if working at all; this way you can save time and energy focusing on what works and tossing aside what doesn't.

Another excellent reason is, as stated before, to save time. You want an online business to enjoy the increase in time available to spend with your family, on hobbies or on whatever you want to do. If you're laboring at a computer all day wasting time on what doesn't work then you are also wasting precious time that would better be spent elsewhere.

There are all kinds of free trackers on the Internet but one of the best I've ever seen is Google Analytics. You can see everything from the number of visitors your site had from day to day, but you can also see their geographical location as well as how they were referred to your site. This is very important as you want to know what is working and what isn't. Another benefit of Google analytics is that it doesn't leave a little box at the bottom of your page which allows both you and all your visitors to see your site statistics. With Google Analytics you place a small piece of code at the bottom of your page which is invisible so only you have access to your stats.

There are a number of different browsers that you must compensate for when designing your webpage's in any format (CSS, tables etc.), some of the most common browsers are : Internet Explorer 6/ 7, Firefox and Safari. The main issues that arise with CSS design is that all browsers interpret CSS differently, for example Firefox does not understand some of the CSS commands that Internet Explorer does and vice a versa.

One of the main issues I have found when designing with CSS is a problem with margins in Internet Explorer 6. I found that when using a float on a div tag that also had a margin set, the margin would actually double and then knock the whole pages layout out. After numerous late nights and an insane amount of coffee I finally found a solution to this double margin bug. By inserting a simple line of code the double margin no longer double ! That solution is as follows, by adding this line of code to your CSS div tag 'display: inline'.

Another problem I have found with CSS in Internet Explorer 6 is a problem when trying to define a div tag that has a smaller size than the base font size. This problem again can be fixed with a simple line of code this time all we need to add is the following line of code to the div tag: 'font-size:0px'. There is also another solution to this problem that should have the same effect, because the div tag auto stretches to compensate for content overflow adding 'overflow: hidden' should also resolve the problem.

Unfortunately I have been unable to cover all of the cross browser issues that you may experience when designing with CSS, but most of the problems that you may encounter can be resolved pretty easily with simple trial and error. Happy designing!