Facebook

Joined the 400 million strong facebook, kept my profile as private as possible.

Joined LinkedIn

Signed up, looked up some friends.
If you are looking for a job, its a good way to network, be referred by people in your industry.

My Delicious account is http://delicious.com/ananyam11.
I have bookmarked our library website.

Tag

I tagged a picture in my Flickr account. I do not think tagging is great for libraries, I would let the Cataloger tag an item. For example, if you see there are 16 tags on Lost Symbol in i-bistro from Library Thing.
If we allow patrons to create own tags on items in our catalog, we might have hundreds of irrelevant tags.

I'm all for IM

I have uses the Office Communicator often since its quick and I get a response immediately. I know the status of my co-worker(busy/available etc.). I do not use IM to chat with friends but find it a useful tool at work.

Google Reader

I subscribed to two website(one of them being fpl23things). Like the fact that I get the updates automatically.

RSS Feeds

RSS feeds lets you know when a website content has been updated. I used FEED MY INBOX to have the feeds sent directly to my Inbox. The good thing is that you receive the update only once in 24 hours.