The Rainmaker Group, a data company that forecasts supply and demand for hotels and apartments, has accepted its first investment since its founding in 1998. Norwest Venture Partners has put $33.8 million into the Atlanta-based company, which will use the funding to expand to other markets. The company foresees a future as a “data as a service” company dealing in “perishable data,” which could apply to office spaces and self-service storage. [Source: TechCrunch]