I am a member of inbox dollars as well as send earnings (which is from the same company just a different name) you earn money by doing the paid emails, free/paid offers as well as daily surveys. The minimum cashout is thirty dollars they pay by check and deduct a $3 processing fee. If you just do the paid emails it will take a long time to reach the cashout minimum but I do the daily surveys as well as any of the new free offers that I haven't already done. I have received payment from both inbox dollars and send earnings quite a few times. In fact I just requested payment from both of these sites again in the last few days. I think the sites are worth it I have been very happy so far being a member.