Before you read the article below, search on yourself in LinkedIn. If you don't pop up on the first page of your search, make sure you READ this article. The title of it catches your attention because it is a bit harsh but once you read it, it makes total sense.
FYI - I search on myself at least once a month to make sure I pop up close to the top of the heap. I continually tweak my profile to make sure I land there.