Contextual advertising is the term applied to advertisements appearing on websites or other media, such as content displayed in mobile phones, where the advertisements are selected and served by automated systems based on the content displayed by the user. (From wikipedia.)
Traffic is gained mainly by various kinds of SEO techniques, one of which is the contextual advertising by particular keywords which help in better ranking in SERPs and indirectly in traffic from Search Engines like Google, Yahoo, MSN etc.

Why buy Contextual links from Multiplesystem India?

• We provide permanent links within content, and don’t charge monthly
• Links are mostly from blogs of specific niches, and blogs are of PR3 minimum
• All the links are from blogs from non-adult niches
• We work like a dealer between the advertiser and the publisher
• We deal with publishers and also have small blog networks under our own hands to handle link orders