Reputation Misrepresentation, Trail Paranoia and other side effects of Liking the WorldThis blog discusses five "issues" with the Like button, followed by four "solutions" to these issues.
Since this is a slightly long post, here's an outline:
Big Deal! -- Is this really important?
Issues with the Like Button
Reputation Misrepresentation -- How Facebook users will be more prone to being cheated on the Internet
Browse Trail Inference -- Did you know Facebook is tracking your browsing history?
Newsfeed Spam -- I'm in your feeds, spamming your friends
"Likejacking" -- Forcing you to like me
Like Switching-- Bait and Switch
"Solutions"
Facebook's approach
Secure Likes
A Browser-based approach
My current solution
Complete article with details - worth reading!
http://arnab.org/blog/reputation-misrepresentation