I'm not sure if I used the term dynamic links correctly, but I'll explain what I mean. Let's say there is a link to Google. The regular link is just http://www.google.com, which we all know has SEO value. However, it could also be linked to in a different way, like http://www.example.com/out.php?=google, or something along those lines. Does the latter way have any SEO value at all? Just wondering, because there are a lot of social bookmarking websites that use that method, and I need to know whether I should just throw those all out as an option of link building.
Yeah don't waste your time on building links that use a redirect instead of a direct link to your website. In the past I noticed that Google did recognize this type of link, but I think they might've changed that.
One of the terms used for this is "scripted links". They do a redirect, and sometimes, mask the true destination of the link. You may also find that the script file (out.php in your example) is being disallowed in the robots.txt file, or at least there is some bot blocking script in the file itself.
You should just make a script that just shows the link instead of that. Or if you are trying to get links from getting redirects, spend time on link building more. Yes... Im not selling any signature links like the guy above me