This blog has been around for a while, and has in fact covered everything about Orkut in such depth and detail, that it should be termed as official site for Orkut .
Everything about orkut can be found here ex: Scrapbook flooders, scrap-all-at-once, new useful orkut scripts, orkut tools like Scrapboy, Orkut toolbar, Orkut messenger, and the most famous Greasemonkey script(for Firefox).
Hosted on Blogger itself, handling vast amount of traffic becomes easy for this blog, and this way Darnell Klayton, the owner of the blog saves some bucks too !! 
Verdict: A frequently must-visit site for all orkutters.
