Business listings - scope and time commitment

[SSFCU]

Hi guys

It is my understanding that for a successful local search campaign, you need accurate listings in, Axiom, Localeze and Infogroup (as well as Google, Bing and Yahoo of course). My company has 70 locations. Does anyone have any idea what the time commitment would be of this? And is it free to add these listings to these three places (went to their sites but still confused).

Trying to determine if this is within my team's bandwidth and/or whether it's better to go through a reasonably-priced, trusted local listings service.

Thanks!

[Blue-Horizon]

I'd quote five minutes per location per listing because you have to verify everything also... ya know, check your email, all 350 of them.