Top 5 Social Media Tools

My boss has kindly requested that I blog my 5 most used social media tools. On the internet, I am an old geezer. My first computer experience was with punch cards, and back then we didn't have any internets because we didn't have any massive, tangled-up tubes. So my tools are pretty old school...

1. Mabber Instant messaging how you want it, where you want it.
2. Zimbra Since a lot of poeple don't use Mabber yet.
3. Bloglines Since I never figured out get NetNewsWire to do what I want.
4. Flickr Picture sharing.
5. del.icio.us Link sharing.