Need ideas for building up ad network

I have setup an ad network offering Adw0rds and ads3nse style Monetisation and advertising and right now have a handful of advertisers and publishers.

The he network has been running for around 4 months.

I am after ideas for how to build the network up to something much bigger as the potential is massive.

I have given away a custom built "instant website" script which displays the ad networks adverts but this is only currently being used by people parking domain names.

Any further ideas gratefully received.

You got any specific areas where you want ideas for? "Ideas to make something much bigger" is not gonna cut it, noone's gonna spoon feed you a million dollars....

Does your network have ads optimized for mobile devices?

What traffic sources you are working with?