Social networking is the grouping of individuals into specific groups, like small rural communities or a neighborhood subdivision, if you will. Although social networking is possible in person, especially in schools or in the workplace, it is most popular online. This is because unlike most high schools, colleges, or workplaces, the internet is filled with millions of individuals who are looking to meet other internet users to develop friendships and business relationships, too.
Here are more than 50 of the top social bookmarking sites available
Go to any webmasters forum, enter the SEO section and see how devotedly people are working on Search Engine Optimization. Making the site bot-friendly (XHTML, CSS, WAI-AAA), amount of indexed pages seems to have an unjustified extra weight and this whole meta tags and keywords density fuss sometimes crosses the line.
JXtended donating a number of JXtended technologies to the Joomla 1.6 source. JXtended will put Joomla in better standing with other Content Management Systems. They feel very strongly that this move, along with access control improvements. They will still be releasing and supporting the commercial 1.5 version, but will be providing an upgrade path to version1.6.
Migrations are the best solution we have for the problem of versioning databases. The scope of that problem includes merging schema changes from different 
