Ask HN: Resources for CPC/ conversion rate statistics?

4 pointsashishk3 comments

Hello,

I'm running some advertising tests, and I'm not sure how many clicks I need to have a significant sample. Are there any resources for this?

There are lots of tools - just search 'Adwords split testing' on Google

You humble man, why didn't you link him to your blog post?

I use http://www.webmasterworld.com/ and just look through things. It isn't scientific but I can usually figure out basics.