I have a link unit on one of my pages. I looked at it's all-time stats today, and saw that it accumulated more than 17000 impressions with a measly 0.1% CTR. So I have three ideas on what to do, and I would like your opinions: 1. Completely remove the advert. This school of thought descends from user-friendliness and trying to avoid smart pricing. 2. Replace the advert with a better-performing one. What would I replace it with? 3. Keep it. Hey, it's earning a bit of money, so why mess with it? So what do you think I should do? Thanks in advance