Part of your job search should be finding out company reputation from current and former employees, vendors and customers.  What’s it like to work at company X?

Who should I ask?

Ex-employees online reviews:  Who has an axe to grind?

Glassdoor, SimplyHired and Indeed has employer reviews

Three examples of divergent opinion at a single, mid-sized (1500+ employees) Information Security firm.  

Germany SE:  Likes firm, likes boss, like products

Los Angeles, ex-cisco guy:  HATE IT!  Get me outta here!

Toronto Sales Engineer:  crushing quota @ 300%, love the job, love the boss.  Staying put