Brand new member here. Good forum.

I have this popular auto blog and am not making as much as I think I should be. Adsense is the best earner but even with that, the CTR is not nearly as high as some other niche sites. Also, quite often the ads are related to credit agencies, which pretty are vaugely related to the blog.

What type of Google ads would you say do best on auto sites?

What other ways can I monetise this site, bearing in mind it gets around half a million page views a month with traffic coming from all sources equally i.e. search, returning and referring sites? Adsense is pretty low given the number of page views it gets even when you discount social bookmark traffic (which is not that high anyway).