What to do with these?

I got 85 accounts all with 1500+ friends, and about 5 have 2500-3000. They all have 400+ pending friend req's aswell. Any ideas how I can use these to monetize or what?

The most common of which is to invite them to groups and fan pages.
People pay $3 for 5000 friends invited.
If you made a facebook page and invited 15,000 to it its a good basis,
when the page is larger you can send out cpa offers etc...
So not only making money from a group but making money inviting to other groups.
You can also sell accounts with 1500 friends for $10-12 i do believe,
so its up to you what you did with them,
those are a few ideas for now.

Okay thanks, i'll have a think about what to do lol

Are you from aciid/dch?

Yes, i was at both forums, the first year and a half of aciid by the name of DJJ. And glitchkingz/DCH. I recognized the username, get in touch if i can help you out with anything social networking related etc... talk soon, hope you find a use for them.