Are there any other pay per lead sites like ModernClick for Internet marketing type of info products.
That sounds interesting. There are a lot of affiliate networks which pay commissions based on pay per lead action. It means that if you send a visitor to that site and he/she signs up or registers, you get paid. If I have understood your question correctly, I can show you one of those sites. DirectLeads is a provider of performance-based interactive marketing services to advertisers, agencies and publishers. You can sign up as a publisher and then browse the whole network to find good offers. Commission Junction which has been discussed somewhere else in this forum has a lot of companies which pay commissions based on pay per lead action.
ShareASale and linkshare is another two, there are many more that I know, but if I list them all then I would be all day.