I’ve just begun Alpha testing DataSift, and its not yet clear to me what I can do with DataSift that I’m not already doing with Yahoo! Pipes.
There is no clear feed-in / feed-out paradigm, since DataSift taps services internally:
To do anything in DataSift involves using its own Curated Stream Definition Language (CSDL):
For feed-out, DataSift more resembles Tarpipe in terms of pricing:
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Update: March 2012
Having in some ways become disenchanted with the performance limitations of Yahoo Pipes, I’ve been delving deeper into DataSift.
My number one frustration was why I could not just get a straight feed output directly from DataSift. I did figure out how to connect the DataSift REST API JSON output to Yahoo Pipes.
However, there seems to be a compatibility problem with Yahoo Pipes “polling” versus DataSift “stream”, and I don’t fully understand the dynamics yet.
They are actually complementary services with many things able to do in one but not the other. The two together double the possibilities.