I liked how another webmaster described a similar need i have right now so...there is very little modification in this post.
Build 50 links to my site. Must be relevant and on-topic. Must not be directory or comment spam etc.
Each link will need to be approved by myself, You will have the ability to exchange links if required (but if you can do it without exchanging links it would be better.)
No spam, No mass emailing, no automatic link exchange etc... If you are not manually researching a site and contacting the owner I do not want the link.
My link cannot be on sites with over 50 other external links. link pages should have mostly PR 1 and above ( a few PR0 is ok )
My site is a strong and busy niche. I have 10 sites requiring promotion, so the right bidder that does GOOD work will get continued business.
Please Quote per link achieved rather than the project as a whole (50 links)
Must provide a time estimate to completion.