This is Jonathan from Kontera. Our In-Text ads work best on sites with larger amounts of text, and looking over you HubPages profile, with 93 Hubs and a number of in depth articles, I think you would be a great candidate for Kontera ads.
Additionally, because Kontera ads are displayed in a completely different part of the page from Google ads, Kontera ads won't interfere with your AdSense earnings, and will act as a completely different revenue stream.
- Jonathan Cohen
Kontera community Manager