Aaron Parecki is the co-founder of Geoloqi.com, and specializes in backend systems development.
OpenSearch is a collection of simple formats for the sharing of search results. One of the formats allows your browser to add your site to its list of search engines, which Firefox displays in the top right corner, and Chrome uses in the address bar. Adding a small link and XML document allows your site to be added to a browser.
Many CMSs such as MediaWiki already support this natively so you might... 
I haven’t used Dreamweaver since 2002 and don’t regret it for a minute. On the other hand, I’ve been struggling to find a good IDE for PHP/HTML/Javascript development for a very long time.
Komodo on OSX is pretty good, and allows for editing files directly from an SFTP server. That combined with command-line Subversion was my preferred environment for a long time.
In the last year or two I’ve... 
I keep seeing people writing scripts that embed their Twitter feed into their websites. The “easy” way is to use Javascript, which means you don’t need to have PHP installed on your server. Doing it this way means your tweets will not be visible to visitors with Javascript disabled.
Really, nobody has Javascript disabled in their browsers anymore. The web is pretty much inaccessible... 