Link exchanges: If you want to build some one-way backlinks I suggest you either purchase other domains and use them as link bait or use free blog hosts instead. If you don't want to spend more money on other domains then the free blog host could be a viable option.
Set up a free
Linkspun account. Add your model website but hide it so other Linkspun users don't request links from that domain. Add your other free or purchased websites and start to trade links. You can start to point one-way links to your model website.
One caveat is that it will take some time to write content for the blogs, unless you use morphing RSS feeds. However, it can be well worth the time investment. If you don't create other websites to initiate link exchanges you will be forced to put up reciprocal links on your model website.
Best of luck.