Scott Allen, over at LinkedIntelligence, has compiled a nice list of Dave Taylor's best articles on LinkedIn, on such topics as...

How do I figure out my LinkedIn Profile URL?
How do I use LinkedIn to find a job?
How can I make my LinkedIn profile public?
How do I invite someone to join my LinkedIn network?
How do I import a contact list into LinkedIn?
How do I add web links to my LinkedIn Profile?
How can I get more LinkedIn invitations?

...and several more. Visit LinkedIntelligence for the full list, with links to each article. Read More...