Bux-type PTCs typically have 1 cent per click ads, and a moderately high minimum cashout amount of $10. The typical referral earnings would be 100%, or 1 cent per click. Also, they have only one level of referral. Viewing time is typically at 30 seconds.

More creative ones have more variety of activities like PTS (Paid-To-Signup) or offers, and other types of ads, like the innovative lottery ads by MasterBux.com. While the obvious advantage are in the high value clicks of 1c/ad, and sometimes more for free members, there are also disadvantages. The costs of upgrades, referrals, and ads are generally higher. Also, being single level, the risk of losing referral earnings due to inactivity is also higher.

Bux sites are also prone to being closed down, especially the higher paying ones, due to unsustainable business model, and lack of variety. Advertisers may find the cost of advertising on Bux-sites too high, and too inflexible. Bux sites may also sell referrals for a good price as a way to earn revenue, but advertising revenue is also very important. Many Bux sites have come and go, leaving members high and dry. The high value clicks make it attractive for scammers to cash in. So beware!