Which is the "most serious"/payable business, allowing users to login with FB?

2 points by gyzar 12y ago ↗ HN

I can only think of Skype and Groupon. Would you mind helping me with a few more examples?<p>Muchas gracias.

3 comments

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Spotify is one I can think of.

Ticketmaster

gyzar 12y ago ↗

I can't find the FB login on Ticketmaster ... Where is it? Thx.