I wonder what is the value of blogroll and sitewide links for link building, and how are they evaluated by search engines, especially by Google.
You have to be carefull with the anchor text, repetative use of the same anchor text can trip the filters potentially attracting a supression penalty, often refered to as -6. So you need to mix up the anchor text.
Yes they do have value, but Google tends to decrease said value in my experience after counting 20 or more links from the same domain to your site. You need to get a variety of backlinks from different, but related sites in the same niche, SY