Depends on your vertical. Bing has about 15% share of search and with Yahoo that percentage is around 30%. It's definitely worth exploring, but it is worth noti

Depends on your vertical. Bing has about 15% share of search and with Yahoo that percentage is around 30%. It's definitely worth exploring, but it is worth noting that keyword match types are implemented differently so you can't just copy/paste your campaigns over from Adwords like you used to.