Some SEO Internet Marketing questions...?

[Hamza]

Don't worry about do follow and no follow, what you want is traffic coming to your website so if the website you are commenting on looks like it could attract the right traffic then add a comment with your link, if your going to add a comment for the sake of gaining a link dont bother it's probably a spam associated blog that no-one reads and link building softwares will attack (auto approved blogs) thus you will not get any traffic from there and be linked with a bad neighbourhood.

Try not to look at it from a 'no follow or do follow' point of view instead think 'will this bring any traffic to my website' 'does this blog look like anyone actually read's it and if so what kind of comment could I leave to get those people to come onto my website'.

Hope I helped clear up points 1 and 2 and if anyone else can add to it or correct me please do.