Signature compaigns can do the job,posting & asking community and you earn money from your posts in the same time .
But whay you will learn from sig campaign
Yeah now i got your idea you wana say first you need to have a sig from some good sig campaigm. Then you can ask question which you dont know and people will answer your question and you will learn some thing from that along with earning.
Thats really a great idea thanks man