back linking on my own websites? need suggestions

So guys,
have been using bookmarking demon since long. its pretty amazing thing.
Now here is what i want to ask.
what if i create my own social bookmark websites.
150 or 200
allow posting to only admin.
Will post to all of them via bookmarking demon.
will be selling backlinks on Fiverr as well, plus will be doing for my own
how's the idea?
i know its gonna cost me much. but looking at the easy backlinks. i think it's worth it.
Suggestions please

my first bump

You will have to built some real quality links first to these bookmarking sites of yours so that the juice that flows is tasty
To make it real tasty you will have to host all these websites on different IPs which may cost you a lot of money.
Once you are done with all this, i would love to buy a $5 gig from you