TrenchMice zapped; Glassdoor opens

California-based Glassdoor debuted this week with essentially the same business model as Seattle-based TrenchMice, which closed up shop the end of April. It's a career community where anyone can find and share (anonymously) insider looks at companies. Glassdoor boasts executives from companies such as Zillow, Expedia and TripAdvisor, and its "sneak peek" companies include Cisco, Google, Microsoft and Yahoo! But since TrenchMice closed because it plateaued in traffic, it'll be interesting to see how Glassdoor overcomes that problem.

-posted by Rachel