No, if you direct link all your sites - and promote them all at the same time, then you should do fine.
1. - more than enough domains - 32 developed and making $ 2. - 8 sites with adsense 3. - i try them all, why not? free to open account, see if it catches, i try to keep checks coming from different sources. adsense is a major check.
1.2 sites 2.2 sites 3.kontera was being used, right now running a month without it to see the results to know whether running it along with adsense is paying or just adsense can pay that much, earlier kontera used to pay around 35% of what adsense gave in a month, of course along with it
Oh yes? I was also intrigued about how people manage 100s and 100s of sites. Mainly driving traffic to them perhaps becomes rather easier if you link them? Btw, have you seen this thread?
1....... How many sites you own ? 10 2....... and how many of them display adsense?? 4 3....... any other add program that u use along with adsense??? only adsense