Indeed do have an API, which I have applied for, but they didn't get back to me yet. Still waiting for a few big job sites to get back to me on using their APIs. Hoping eventually I can get them all!
I've made sure not to crawl any sites that do not allow it, such as LinkedIn for example prohibit it, so I left them alone ;)
I wanted to build a service to gather and analyse all types of job information and see trends. I would ultimately sell the data, however I don't think it would be possible reading some API T&C's. Just a flaunting idea.
That's right. I am trying to normalise the data from all the sources so I can generate some useful filters.