The good news for Adsense publishers who have seen a drop in income lately is that you can run plenty of other advertising on your website or blog alongside your Adsense contextual ads. Kontera is an advertising network that creates contextual links on relevant keywords contained within your web copy. You get paid when a reader decides to click through on the advertisement. You are unlikely to be accepted at Kontera unless your website gets substantial traffic, but once you have a Kontera account the ads runs themselves and this can be an extra source of passive income for bloggers. The clickthrough rate is not as high as for Adsense, in my experience. However if your site is using the right keywords - like acne - you can make some extra cash with Kontera ads.