Facebook has started testing its own instant messaging, causing concern with other third party applications that already provide this functionality. Like GTalk, this will be built on the Jabber platform, and will also work right in the web browser, letting users chat with their friends directly from their profile.

Looks like the new iPhone SDK won’t be as easy to get a hold of as originally announced. Many developers, from professional to hobbyist alike, got rejection letters from Apple this week saying that they would not be getting the much desired iPhone SDK. So far very few people have reported acceptance, and so far there seems to be nothing outstanding that separates the accepted from rejected.

Are you a web designer that is in love with Photoshop, but you don’t know how to make it really sing yet? We’ve got a link to a great tutorial site and, for example, a specific lesson that shows you how to make photorealistic reflections with a few simple tools.

Yahoo has joined the next generation of web development – Web 3.0 anyone? — by announcing support for numerous semantic web formats. Included are RDF and microformats which make it easier to share personal data and calendars online across multiple formats. Expect a flurry of websites updating to support these formats, so that they can keep bringing in traffic from Yahoo’s search results.

“Visualization” is all about hot new technologies that turns complex information into something understandable, with different visual graphs. We’ve got a link to the best tools for visualization, including free programs that can parse complex data very easily and give you cool graphical results fast. It includes tools for Digg, Amazon, Last.fm and many others, allowing you to leverage the internet to show your stuff in whole new ways.