New to SEO. Help me out!

[drzoidberg]

The start up I work for is trying to boost the ranking of their web site (we'll call it www.mysite.com) on google. Out all over the web there are various sites of our clients' that have links of ours on them. However the links are similar to this:

http://www.mysite.com/UserName?moreWords=jdoe&cmd=blahBlah

These links don't seem to be doing us any good, as far as other sites linking to us.

So I guess my question is...Would a link to a url with a query string appended to it (ex: http://www.mysite.com?moreWords=jdoe&cmd=blahBlah ...notice that "/UserName" is now simply "?moreWords...") still count as a valid link to www.mysite.com?

I apologize if this is a remedial question, but like the title says, I am new to this. Thanks in advance for any help.

[seobook]

each of the different query string versions is viewed as a different page and all but the top copy of that page (whichever one has the most link popularity...which is usually the regular version) should get filtered out as duplicate content.

[Carlos Chacón]

All we know is that the links with estrange symbols as #$@! &^%*((Most used in the dynamic pages) are not good for the crawlers. But, sometimes the companies uses a ID tracking to let them know how much traffic are getting from the site or vice versa.
So, I think that those links won’t hurt anyone ONLY if they go straight to your site.
;)

[seobook]

So, I think that those links won�t hurt anyone

certainly they do not hurt, but also they do not help as much as they could.

[Carlos Chacón]

Yeah, they don’t help as much as they could…But sometimes that’s the way how the dynamic pages includes your URL, using those symbolism in their URL paths.