I am looking for social networks, other than Facebook and Twitter, that offer their API to developers, for free. Which other social networks allow developers to crawl data? What kind of restrictions do they have? I am interested in any kind of social network. I would like to collect data for further processing.
In addition to I.M.'s list, there also exist:
- Youtube (as distinct from G+)
My employer is building a service to provide a unified API for these services and more, leave a comment if you would like access to our pre-production API. You get access and I get to learn about your use case and add the features that you need to our API.