YubNub - join
YubNub.org is a command-line for the web. After setting it up on your browser, you simply type "gim porsche 911" to do a Google Image Search for Porsche 911's. Type "random 49" to return random numbers between 1 and 49. And best of all, you can make a new command by giving YubNub an appropriate URL.
Low activity, 248 members

BlinkList - join
This is a discussion forum where you can exchange information and share ideas with other users of Blinklist - a website organization, bookmarking and colloboration tool from MindValley Labs. www.BlinkList.com.
Low activity, 867 members

Google Labs - Notebook - join
This is a discussion forum where you can exchange information with other Google Notebook users.
Low activity, 2968 members