I have a contest similar to generate "likes" on fb, you have to log in to vote. I have similar project where I need 250 votes through FB entry for a contest for a grant through Chase. I thought I would reach out to see what you think might be possible to generate these votes in time. Deadline June 30th
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You can PM me for the name of the company. It is log in with FB and then vote for your company etc. I look forward to hearing from you.