If you haven't read how this works, some of these terms might not
make a lot of sense.
The most important page in this section is the
membership levels page, which discusses the costs and benefits of various upgrades,
and the features available to each membership level. Referral
bonuses and earnings are also discussed there.
Webmasters looking to get a quick boost in traffic without surfing may
purchase credits through the membership area. The
credits page lays out the costs, and
bulk-discounts available for purchasing credits.