Check-In Everywhere!

Gowalla

Prizes!

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Whrrl

LOVE the photo-sharing and tip-leaving with this app. I think the “societies” part of this one makes it a bit more interesting – and more social – than some of the other ones.

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Foursquare – Find Places to Eat, Drink, and Visit

Probably the most obvious, right?

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CheckPoints #1 Rewards App And Free Barcode Scanner

Like the rest of these, but with corporate sponsorship – Checkins get you points which you can then swap for merchandise at select retail stores.

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Brightkite

Pretty sure this one was the first to market – photos and location-based checkins. They’re rolling out all kinds of new features to stay up-to-date and ahead.

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Facebook

Facebook Places lets you check in and show your friends in the news feed.

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Yelp

Your favorite business review site, now with check-ins!

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