Looks like Google Calendar decided to add a little appointment booking feature. As I understand it, this is the feature that Tungle.me brought to the table and while I'm not sure what else Tungle does it would appear that Google has now stolen their thunder. This is also directly competitive to what my buddy Nate is doing with Ohours.org. 

It's kind of sad that Google's innovations on these "non-search" products really only happens when other competitors getting traction.

If you're startup is in this position, never fear, you may want to give Mark Suster's blog a read where he writes about, What to do when a tech giant decides to eat your lunch. His best point:

So this is Turntable.fm.

It's a service that basically results a real-time socially created play list. Tonight I saw a tweet about turntable.fm, so I checked it out. It's got a VERY simple home page with almost no other action than signing up via Facebook. I authorized FB and immediately came to a list of rooms. I didn't really understand what a room was, but I did recognize that there was a Zaarly room. I know some people who work at the startup Zaarly so I joined the room. 

It's super intuitive figuring out what should be done. You join. You DJ. You get points. You have an awesome playlist. The idea is that you can join the table (up top) as a DJ. The DJ's compete to mix songs so that the rest of the room will vote for your songs. You can see at the bottom of the screen shot that users can vote 'Lame' or 'Awesome'. Awesome votes result in points and you move up the table as your points increase. You can search for music under my DJ Queue and add songs that will be played in order of selecting them. The list of available songs seems just as strong as Spotify, basically everything. I think the song may get cut short if everyone hates it but I'm not sure. It's a really fun little music competition, BUT it also works to create an "awesome" little play list. You can also talk trash/communicate with everyone in the room via the chat functionality on the bottom right.

I spent a few minutes to select a good mix of music that I wanted to play for the room, then sat down for dinner and had an awesome play list for 20-30 minutes. It was fun knowing that people were competing to make a cool play list and the diversity of the music played was WAY BETTER than putting on a random Pandora station. Well done to the folks behind turntable.fm, I'll be back to show off my DJ skillz. As you can see from the screen shot, I was the best DJ in the room ;)

Not sure where this app will go but it's an incredibly well executed use of Facebook integration and would be a really fun feature to add to a service like a Spotify.