Link Exchange can be defined as linking between the websites. in simple words we can say that if one website sell only
air ticket that site is known as travel related, and the visitor of that site may need to book hotel accommodation also,
in this case if hotel accommodation site link from air ticket site the visitor customer get benefit from one place.
So in simple language we can defined link exchange is as linking between service related web sites or web business.
But in current search engines algorithm, link exchange means linking between as many as web sites. Some search engine
optimization guru has mention that to get or achieve high rank or to get top position on search engines websites need
to be Reciprocal Exchange or cross link exchange. Reciprocal link Exchange means linking between websites
but Cross Link Exchange means indirect link between webmasters other sites. Now webmaster love cross link exchange then Reciprocal Exchange.
Link Exchange for better link popularity Link Exchange to achieve high rank on Search Engines.