Click.tv is offering a nifty Flash-based collaborative video annotation and tagging service, somewhat similar to our Northwestern University partners’ Project Pad web application. A seemingly unique feature of Click.tv among the widely-available web annotators is its capacity for multiple annotation tracks.

One early application has been to combine Engadget, Gizmodo, Wired’s Cult of Mac and others’ coverage of last week’s keynote address at the Macworld conference in San Francisco. So if you want to get your geek on and witness the first searchable, collaborative streaming index of the Reality Distortion Field in action, head on over to the Jobsnote on Macrumors/Click.tv.