How to install 500 WP blogs easily?

hxxp://wordpress.0rg/extend/plugins/bulk-create-blogs/

Make a CSV of every site you want created, complete with username, password, and subdomain or subfolder address, and it'll all be taken care of.

The CSV might take a while, but it's a lot quicker than sitting there and manually doing 500 blogs.

I've done it before, so good luck! It'll be worth it when it's monetized.

Not to post again, but there's also a plugin that will turn one WordPress site into a multi-site with one click.

hxxp://wordpress.0rg/extend/plugins/wordpress-multi-site-enabler-plugin-v10/

These two posts should help make a lot of your multisite installations easier. If you need more help, let me know and I'll put together whatever I can.