Quoting yesterday's posting by Carrie Dow:
"As those of us who love cats know, if one cat is good, two is better! However, if you are bringing a new cat into the household of another cat, the Cat Care Society has some ideas to smooth the transition and keep everyone, cats and humans alike, happy."
Link to the Lakewood Pet Examiner
Also, on this topic, check out Cat Care Society Adoption Manager Abbi Collins' interview with 'The Daily Cat'