I totally agree that to rank our site in the SERP, we should evenly distribute our site link throughout the web and we should also be careful that we submit our site link in such site which has PR more than ours and having less OBL so that the backlink coming from those site should count for our site.
Thanks for sharing the tips.They are really nice links.Directory submission, social book marking, article submission can be very helpful for bringing traffic, better indexing of the site and also for the higher PR of the site.
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