Beginner's guide to LinkedIn

Here's a handy starter's guide to Linked In.  If you are not using Linked In to keep your business contacts you are missing out.  It's amazing how often you find something that you would like to pass on to or ask a former colleague if you had their up to date details.  With Linked In you have that and the opportunity to perhaps to contact the contacts of your contacts.

Mashable - The Social Media Guide