Blogger is finally thinking to organize Blogger resources for better accessibility for Blogger users. Besides probable template and artwork directory, it has already put up special blog for featured Blogger gadgets. It contains cool Blogger gadgets created by third party developers.
First batch of addition has gadgets to show Twitter updates on your Blogger blog. It also has Picasa Web gadget that display thumbnail of latest photos uploaded on Picasa account. Also, there are gadgets to show recent posts and recent comments on Blogger blog. Checkout Blogger Featured Gadgets directory [source]