These other sites consider your site important enough to link to. However, one of the most difficult areas of SEO is building link popularity. Abuse them, and you’re treading in potentially dangerous waters. Which is similar to search engine optimization. Keep in mind that these strategies aren’t in any particular order.
Be sure you have developed genuine content on your Web site of interest to the trading partner. Look at the pages that appear in the top results. Otherwise move on and take their site off of yours. This is also similar to one way link building membership. Piggy back on their high ranking.
Inktomi’s link analysis program policy is that sites that link to its relevant topic category page on Yahoo receive improved hub factor rankings because of Yahoo’s popularity. Does it help? I don’t know. Think about your theme. Ask your upstream or downstream suppliers to link to you and you to them.
If you are linked to by a spammy link farm, you get a penalty. By building up a “working rapport” with other local Webmasters or affiliates, there are lots of ways that you can mutually benefit by trading links with several similarly themed sites, which are non-competing. And you get great content. If you’re asking someone for a testimonial, tell the Webmaster to whom you’re writing that you’re willing to put a link to their site under their testimonial if they’re willing to reciprocate.
This works because you’re giving away something of value, and when people find it valuable, they’re likely to reciprocate. Sometimes this can be similar to one way link building to many people. A sure fire way to increase link popularity is to have a high quality newsletter or article section on your site.