you are in a very competitive market, but that should not discourage you.
you should get some paid directory submissions.
you need some page rank before asking people for link exchange, most would not be interested in exchanging links with you, what's in it for them.
first place would be microsoft small business directory at
http://sbd.bcentral.com/ US $ 45 A year
Second would be Yahoo Directory at
http://dir.yahoo.com/ US $ 299 a year.
Third will be Business.com at
http://www.business.com/
what you have to do here to submit to approperiate and related catagory.
These should hopefully give you some page rank and get all your pages indexed.
you can search for more paid and free directories.
once you have some page rank, then it becomes easy to ask people for link exchanges.