I have link exchanged with few sites from which I didn't received a single click in one month time. Should I remove the links of that site from my site or it will help me in counting my page rank?
It still helps your page rank and search engine rankings - assuming they are a decent site. I guess it all depends on your strategy. If page rank and search engine rankings are important to you and the site linking to you is of a reasonable quality I'd suggest leaving it. If on the other hand, all you wanted from the link was traffic, then it would make sense to remove it. Hope this helps
Another thing don't put too many outgoing links on one page. Your site will get penalizes otherwise by Google.
Link building is still useful for building your link popularity and helps to improve your search engine ranking. Just leave it be and perhaps work on other traffic driving methods. You can check out more powerful traffic generating methods - mostly FREE from my free report in signature.
If your site is really a decent site then it will help for always, You can try changing and then see the results. But something is always better then nothing
well , bookmark your site . It will give you some decent 100 backlinks from 100 different social bookmarking sites.Most of them will be from higher page ranks. Hope this helps.