Here is a list of the most useful ones with reasons for why you need them!
HITs Worth Turking For
However, we also know that some of the tasks don't pay out, or pay out too little for the amount of time they require.
This subreddit has all of today's best HITs and most of them are quite high-value.
It's definitely better than randomly clicking on a task and praying that it's a good one!
BeerMoney
eFreebies
This sub has the latest information on the coolest free stuff all over the world.
I visit it daily to see if there are any new websites I should check out, and to see if there are any sites worth adding to my site.
Freebies
ProductTesting
They have a list of the most common product review sites here.
WorkOnline
I usually visit this at the same time as BeerMoney because they are almost the same thing.
This is more job-oriented while BeerMoney is more discussion-oriented.
SlaveLabour
PerkTV
They have all of the information you could ever need about Perk!