I read a lot of things around the web.
I saw people selling 4K backlinks and social real users tweets, likes, sharing links on Facebook, Twitter, Instagram etc..
- assuming you have opened a site which is on beta stage and users needs invitations to signup
- assuming you are not an administrator of any huge Facebook or social community (Facebook groups, meetup groups, forums, chats etc..),
- assuming you don't have much money to spend for a huge campaign on paying ads,
- assuming you want to stay out from venture capitalists, angels and so on (at least to check if you can do it without external/third parties help)
Is "trusted" SPAM, or paying backlinks, the only way you can go for getting some traffic to your website?
If not can you describe how can you promote your website on the web excluding all the points above?