Blogs comments are backlinks?

I have heard that all blogs have a no follow tag for comments, but I still see people commenting for backlinks. Plus I have tried it myself on a few blogs, and checked iwebtool backlink checker, and they come up as backlinks. Are they helping my SERPS?

 

It helps if that page of blog has page rank and is same topic and does not use no follow . If they use no follow or you can not make text link with words for site they do not help

 

ah ok, so it does help some. I haven't experienced much, if any blogs with no follow. I just assumed that all blogs had it on

 

Avoid the NoFOLLOW !
I made a post a few months ago in my blog showing how you can easily tell what links are follow/no follow with a simple mod of Firefox..

 

not all blogs use nofollow.

 

Basically nofollow tag will tell the spider to stop them meaning that we won't crawl further. It was introduced by Google to avoid spam comments. With nofollow, the links inserted won't be considered backlink.

 

Commenting on no follow up help in domain view, means even this effort does not goes waste.

 

Even links that are nofollow are still considered as backlinks...

 

If the blog owner has disabled the nofolow then then links may help.

 

If the blog doesn't use the no-follow then it may help, otherwise it's just good for visitors from that blog.

 

well..Google will not considering all those links as back links for your site.

for google, it is less value with "no follow tag" links.

 

Hey guys, I think all of you forget about Yahoo and MSN... As I know this search engines follow even nofollow comments in blogs. 35% of search will be not superfluous as for me

 

do follow blogs help in backlinks