Offer Nation works similar to Swagbucks, Grindabuck, and others. But this one also does daily rewards, so hardly any work to build up points and it has one of the lowest cashout minimums of many of these sites at $1.00 USD. It works globally as well.
InstaGC is a great Swagbucks alternative that has a great community and a nice selection of offer walls and surveys and more. You can also earn points with cashback from purchases you make, searching online, partipating in sweepstakes and even competing against other users. You can cash out for PayPal, bank deposit, or one of thousands of giftcards that are available. Minimum cashout is $1.00 USD as an Amazon.com giftcard.
Swap Caps is an awesome bidding site where everything can be free. You can list items to sell for “caps”, as well as earn caps from offers, videos and surveys to use for buying different items. 100 caps are worth ~ $1.00 USD. You will receive 250 free swap caps when you join.
FushionCash can get you money really fast. You can basically get $0.50 per app download, no limits to how many you download and open per day. You can easily make $20/day if they offer enough apps. There are other activities, surveys, videos, etc, to add to the revenue. They offer a $5 signup bonus and a $0.50 text verification bonus, when using my referral link.