So I have an interview next week that I am prepping for and though I would drop a couple quick notes of the steps I go through.

1. check LinkedIN to see who I know there, or who knows someone there. Also look to see if there is a company page and who might have worked there in the past.
2. check my social networks (facebook, twitter, etc) to see who might have talked about it recently.
3. reach out for information about the company, and possibly people you might be talking to.
4. research any recent company news, press releases, etc
5. if possible, find out what technology they use in house and any recent developments they may have released.