How many proxies do I need?

Just starting to build some facebook accounts and wondering how many proxies I should be using? Do I really need 1 proxy per account?

As a general rule of thumb, I stick with about 3-5 accounts per proxy. Keep in mind however, it is not so much the varying IPs that you need to keep your FB accounts under the radar. If you are spamming heavily, adding friends too quickly, etc. these actions are more apt to draw attention to your accounts and potentially cause a ban. See the following thread:

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Great, thanks a lot. That's pretty much what I was wondering. I'm planning on getting as many as I can and doing 30-40 friends a day on all of them as recommended.

Thanks for that thread as well. I always look around before I post anything but I didn't stumble on that.