FB - I started a small position at $225 and have been adding every 10 points lower. I've traded it a little.
I'm personally not a user, but it seems like everyone else uses it. It seems to be very entrenched in people's lives. Businesses all seem to have Facebook pages. I think the stock will have a nice price recovery. Not betting the farm on it, but I like the risk/reward.
I have seen lots of $1 stocks with strong earnings and solid balance sheets triple, quadruple and more, but I have yet to see one go below zero.