I been looking at my adsense income today and just studying the channel incomes. I noticed that my channel which I use to monitor a site related to affiliate marketing is paying 4 times more than a channel which I use to monitor a site taking about adsense!! Okay, the click are only about 20% more in the affiliate channel, but the income is much more compared to adsense. I noticed that it is true month after month. Does anyone else notice this? I never bothered to look for how much is the PPC in Google adword for adsense keywords nowdays, but i believe it is much cheaper than affiliate niche .. i guess. I always use free traffic methods...LOL