How to get charity places

Hello,

We're new to the fundraising game (apart from having the odd runner who's raised some money for us) so I have several questions...

I've been looking for information about charity places for 10Ks/Half Marathons and Marathons but have found nothing.

As far as I remember it's nearby impossible to get Golden Bond places for London, but can anyone advise me about other races that have charity places and how to apply for them?

Will Virgin be issuing any new Golden Bond places for London 2010?

Is there any kind of marketplace for existing Golden Bonds?

And lastly do any of you have any tips for finding runners who get ballot places in London?

Thank you very much,
Caroline