Influencers have a big social following in your industry, and their social shares have high click through rates from their followers.

There are a few places I'd recommend exploring:

Twellow - A directory of Twitter users filtered by industry and influence.


Technorati - A directory of the best and most influential blogs and bloggers.


Follower Wonk - this is an SEOmoz app and it does a great job of allowing you to identify influencers on Twitter or search for profiles with a particular keyword.


Tweet Grader - this is a Hubspot app, but it allows you to run basic searches on your network, look up the "Twitter Elite", and find influencers by location.

Hopefully you can reach out and get them to promote, participate, and drive traffic to your contest.