I received a great question from an ambitious company. They asked about trading links with other sites to increase their visibility in search engines. It’s a question that’s not too uncommon so I thought it worthwhile to share my response here.
While I don’t know all the details of the link sharing that you have in mind, generally speaking, I strongly recommend not posting links to external sites unless it unambiguously provides value for your prospects and clients. The ultimate long-term determination of your site’s success, and coincidentally search engine prominence, will be the consistent quality of the content and resources you serve up on your site—not how many links you have traded.
In theory, trading links with another site does little, nothing, or is actually detrimental to your search engine rankings. You usually gain search engine prominence (called PageRank by Google) from getting links to your site and can lose it when linking to another site. So if you trade links your PageRank may cancel itself out and not much is accomplished.
Regarding incoming links, you want to be as selective as you can because back-links from some sites it can be actually be harmful:
“Google is known to actively penalize link farms and other schemes designed to artificially inflate PageRank. How Google identifies link farms and other PageRank manipulation tools are among Google’s trade secrets.”
When sites advertise that they want to trade links a red flag immediately goes up in my mind that these sites might not be good company to keep from Google’s perspective. But even if they are, by trading links there’s not much to gain.
As a rule of thumb, the more links you can get pointing to your site from other reputable related sites the better, the fewer you can get leaving your site the better for maintaining your PageRank.
The basic principle to remember is, make your site for users, not for search engines. (This is a quote from Google)
Here are some good sites from Google with their guidelines.
Also, I’ve written a number of other articles on this topic you might find helpful: