i suggest you don't take more than 5 keywords per page
inbond link- through which traffic comes in to your website like backlink
outbond link- through which traffic goes to another website like adds.
penguin update is webspam algorithem for spamers those who using black hat to genrate fash traffice to there website
open site explorer is best too to anlyize the competitor links.if you want to analyize the statistic then go for google analytics.
if you want to do social media marketing in India than facebook is better and if your want to do markeiting in global than twitter is better.
through no follow sites you not get quality traffic
hello friends i am new here i want to party of the your community could i
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