I found that most of the dofollow search engines gives blogs with rel='external nofollow' code.I'm confused whether it means dofollow or nofollw. I someone know this plz tell me such blogs r dofolow or nofollw. Thanks.
If it says "nofollow" then it is nofollow. It does not have to be in the "rel" either. I've seen "ref=nofollow" as well that apparently is honored as being nofollowed by the search engines. In most cases a dofollow link will not have any word related to follow in the link.
There could be multiple space separated values for the rel attribute and each of these should be considered. From search engine's point of view rel="nofollow", rel="external nofollow", rel="me nofollow", ref="bookmark nofollow" or any other will still be a nofollow link.
what's about rel="external" or rel="_external" something like that .. This means that the link keads to an external page .. is it dofollow ??
rel="external" is the xhtml counterpart of target="_new" but relies on a js function to work since it is not directly supported by browsers. rel="external nofollow" simply opens a new window/tab but is also nofollow I threw together an example http://bumbol.com/link-examples.php cheers