Second Brain - a cool social service aggregator unlike Friendfeed, which only lists your all your social stuff in a boring way. SB has lot better user interface, usability and very easy to use. It also provide you 1GB of space. Friends can also subscribe to your feeds any time.
You can upload photos to your FlickR. Intrestingly if you upload any PDF file it will be sent to Scribd iPaper automatically and will also be available with all of the option on Scribd.
This service is free to use and surely be popular in recent times.
Go explore your second brain instead of logging into each web service or getting bored Friendfeed.
Join Secondbrain