I am using such sites to get BTC, because I found a nice set of pages that allow me to gather BTC faster than with using my gaming rig for mining.
Using pay per video and pay per website visit sites is slow but steady.
The fastest way for earning BTC are tasksites, such as coinworker, tasks4dollars and dollarrewards, where you can do crowdflower tasks to get Bitcoin. Dollarrewards also has surveys and trial offers. But you have to read careful on trial offers on any site: They mostly are subscriptions. Also stay away from software downloads, they will install undesired additional software or even trojans.
Thanks for the feedback on those lists
You dont have to disclose this, but just curious estimating how much do you beat the mining setup by. Do you pump out like 1 or 2 more BTC?