very rarely, their usually spam
Yes, generically people can win prizes for their work.
they do not work
Various sites offer games where one can compete for free prizes online. The Free Online Contest website offers contests, surveys, and polls that reward free prizes. At Online Real Games website one can enter drawings for cash prizes!
You can find cash prizes for performing tasks online from services such as Amazon Mechanical Turk. Alternatively, you can also find cash prizes from websites such as PlaySpan.
You can win prizes at events, competitions, contests, and raffles that offer prizes as rewards. Participation in these activities often requires skill, luck, or a combination of both. Additionally, some online platforms and games also offer opportunities to win prizes.
"Types of prizes that can be won from online bingo sites are: cash prizes, free entries into tournaments, vouchers for other websites, rewards points, merchandise and trips."
you can get card packs and register them online to win prizes
Euripides won four prizes for his plays at the annual Athenian dramatic competitions called the Dionysia.
There are many websites where you can win prizes. Many really make you earn them by providing information on yourself and your friends.There are manyvirtualgame prizes for those with a PS3 on the Playstation Network at the Playstation Home site, but that is not the only site that will offervirtual prizes.
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Occasionally people do win prizes online, but they are certainly a minority.
It really depends, if you're talking about in a land based bingo hall, you can see a various amount of prizes... small things from free meals all the way up to large prizes like cars. Online casinos will typically give out free bingo cards with cash prizes so you might want to check out that option.