Carpe diem on any duplicate content worries: Google, Yahoo and Microsoft now support a format that allows you to publicly specify your preferred version of a URL. If your site has identical or vastly similar content that’s accessible through multiple URLs, this format provides you with more control over the URL returned in search results. It also helps to make sure that properties such as link popularity are consolidated to your preferred version. Read more – ‘Canonical URLs – What Are They All About?’.
An increasingly popular technique among websites and in particular, blogs, is the idea of making URLs search engine friendly, or safe, on the premise that doing so will help search engine optimisation. By removing the obscure query string element of a URL and replacing it with keyword rich alternatives, not only makes it more readable for a human being, but also the venerable robots that allow our page content to be found in the first place. Read more – ‘Enabling Search Engine Safe URLs with Apache and htaccess’.
A web community is a web site (or group of web sites) that is a virtual community. Web communities in recent times commonly take the form of a social network service, such as Facebook, Upcoming and Last.fm, an Internet forum, a group of blogs such as WordPress.com and Blogger, or another kind of social software web application. Read more – ‘The Four C's of Community’.