This is one of the best link buidling requirements list I’ve ever seen. If you are having a company or individual build links have them follow these rules. Most importantly, have them report the links they’ve built for you.
There are a lot of shady tricks out there and this list will help you avoid 99.9% of them.
1- One link per domain. No more than 3 links from the same Class-C IP address
2- Require One-way links only
3- Links should contain the target keyword/keyword phrase (we will supply the target keyword/keyword phrase) as text in the link anchor text hyperlink
4- Links must be permanent
5- Links must be in text, no graphics
6- Links cannot be from framed pages
8- Links cannot be through a redirect script
9- Links cannot be on Flash sites or pages
10- Links cannot include a rel=nofollow tag
11- No links using any automated techniques or black-grey hat techniques of blog comment spam, referrer spam or ANY other shady tactic.
12- Page containing link must not be excluded by robots.txt and the anchor text must not contain the rel=nofollow tag.
13- Linked sites must be in production and active . (Developed and not under construction).
14- No sites that require payments
15- No Scraped content, mirror sites, link schemes and sites overrun with contextual ads, popups, intrusive advertising, etc.
16- No link from: guestbook’s, social bookmarking, classifieds, dynamic links, link farms, link-exchange programs, forums, directories, articles submission, Free For All websites, hacker, pharmacy, illegal, pornographic or generally black hat sites.
18- Links must be manually submitted ONLY. No use of Automated software (e.g., Zeus, Arelis or others
19- We reserve the right to cancel any link if not found suitable.
20- Page containing link must be reacheable using normal flow navigation from home page and sitemap (if present)
21- Link page should be from English / German / French language sites only
22- Link page must already be indexed and cached by Google within last 30 days.
23- Links must be on pages with 20 outbound links at most.
24- Links should not be listed, illegal and other offensive websites (porn, gambling, spam, ban, or blacklisted).