Another good tip to remember when considering the value of a link is that all links are not handled quite the same. When we ask about things like whether a link is site specific or page specific, it's a good thing to remember that a search engine does not really see a Web site or even a a Web page. From a simple minded search engine robot's perspective, the whole Web is seen as a world made up of URLs.
Reciprocal linking does not have quite the same value it did years ago. In a way, it is good to link out based on other pages that are related to a similar topic. But if you link to them and they link to you, it somewhat nullifies the value. Not always, but sometimes. The other thing to mindful of is that sometimes if you link to a Web site and are not aware that that site is participating in a link farm or doing something else against Googles Webmaster Guidelines, that you could end up being penalized for linking to that site. Google says that if a nasty site links to you, that's beyond your control, but anyone you link to is well within your control. For example, it could be something that is not readily evident to you, for example suppose you link to a Webmaster who makes a habit of buying high PR links. There have been cases where people are flagged because they are linking to shall we say "bad neighborhoods."
What other types of links hold good value?
Links within your own Web copy tend to have more value than links in your navigation. If a related site links to you and is also includes your keyword in their Title Tag, the link on that will have more benefit than if the Title of the page is unrelated.
Initially, Google use to devalue links in some Social Media sites like keyword rich links coming to you from Facebook, but these days they seem to be carrying more value than they use to. Remember that a link within a caption underneath an image, tends to have a little more value too.
In my own link building actions, I try to stay focused on links to informative pages or Blogs that I think my readers will benefit from and are at least somewhat related to the topic I'm discussing. Remember that if you Blog, that most Bloggers are very generous with links because they just seem to be so focused on their topics (or at least in cases where the Blog has a defined purpose) and many will Blog daily and many Blogger are focused on 2 way dialog and conversation trails about their topic.
Other great places to get links from are authoritative and busy Web sites, places like About.com (but you need to write very useful content of an engaging, useful nature in order to get them to link to you) and of course there are educational sites that tend to deliver a lot of value in their links.







