I've been monetizing my websites using popup ads for the last year now, getting about $2/day with them but the returning visitor rate is not that high. Popups usually are annoying and drive users away. My websites drive about 2000 uniques/day, 4000 pageloads/day I've used some cpm banner networks but the max payout i've got per day was just under $0.50. Anyone know of any good cpm network which pays $1 or more for 1000 unique users? And none of those pretentious douches which must first approve your account. Thanks!