How to promote website like pastebin

Recently I made website like pastebin... I added few more thing...

My domain is very short, All public pastes are indexed by google, You can comment on other people pastes, You can Ask anonymously and answer to other questions anonymously, You can promote your website or something like that...

So what should I do to get more backlinks or more activity???

You want backlinking as part of your strategy, but you also want paid and viral advertising. Viral can be in the form of giveaways and the like, paid advertising along the lines of affiliates earning commissions per sign up or traffic sent and ppc, ppv, etc ad campaigns to boost general exposure. Thik of places like Reddit, *****, youtube, etc where people can see quality, share it, and maybe even monetize it to make money off of. Without some form of people being able to make money off of your pastebin clone, they have no reason to use a pastebin clone.

But they can disqus on my website... ETC some PHP web developer can paste PHPcode and then other visitors will review it... Is that ok or not?

Because of comment feature my website is something like "stackoverflow.com" "simplyconfess.com" any reddit subreddit with "self.something".... If you have hosting company you can post hosting plans on my website and google will index that "paste"

Why would I use your site other than pastebin? Answer this question in depth, then start marketing around those 5 or so facts. This will create a strong sales copy that you can use to strengthen your branding.

Ok. I have Idea. I will make one more input in submitt form where users can add their google adsense pub-id. I will give them 100% of all earning. When they write something and put their pub-id 3 ads will apear on that page. They can drive traffic from facebook and earn money. What do you think abou this????? I will develop this tomorrow

Edit:

It is done... Now you can add your adsense ID and all pastes done by you will have your ads...

check here
http://prntscr.com/7n11fb

I think your best bet is to try facebook ads or adwords.

Maybe even consider reddit, target ads properly, and I think you can harvest nice results.