If you want to develop your professional network, create a profile on www.linkedin.com
Fill in all profile information. It looks like a resume and it actually is ... but a dynamic one!
List all your jobs, link to companies and make sure to add a few lines of text explaining what were your main achievements for each position.
Get in touch with your professional contacts (colleagues, customers, ...) via your address book or using LinkedIn “Search” functionality.
Remember that LinkedIn works as any other social network, all your profile modifications or public interactions with other members or pages will be shared with your contacts. Check LinkedIn’s homepage to view your contacts’ latest moves.
Don’t forget that you can print or save your resume as a pdf.
Optimise your LinkedIn profile to make it easier for search engines to find you by using keywords in your headliner ( read more ).
Make sure to read this comprehensive LinkedIn beginners guide - http://bit.ly/startlinkedin
You can share anecdotes, titbits about your professional life with your network by updating your current status on a regular basis.
Status information will also appear as a new element on your profile page.
Make sure to add links to your status updates for those who would like to know more about what you are currently working on.
By linking your Twitter and LinkedIn account, you can also tweet your LinkedIn status to your Twitter followers or automatically post your tweets as your LinkedIn status (be careful with the latter as tweeting a lot could be seen as spam by your LinkedIn network).
Read more: http://learn.linkedin.com/twitter/
10 Tips for Effectively Using Your LinkedIn Status Update http://bit.ly/tipsupdatein