A variety of waiting periods must be endured with each search engine before there is even a hope of being listed. Knowing and understanding these waiting periods before beginning the process can eliminate or at least minimize frustration and confusion. Typical waiting periods for some of the more popular engines are six months with Yahoo; one to two months with Lycos and 4-6 weeks with Excite or is that 4-6months?

Link exchange means if your website is all about finance, you should be on the lookout for websites that deal in finance along with other websites that are not related to finance.
Link exchange for a website is usually done with websites of the same industry as well as with the websites of other industries.link exchange is also considered essential for the searchability of your website - search engines like sites with a great number of incoming links as these sites are perceived as more important than poorly linked sites.

Importance of link exchange in SEO is very high, with the help of it you can easily improve your site ranking.

To promote the website we can use the link exchanging services and it is the one of the best services and it is totally free and very effective services. Through link exchange service we can improve our website page rank and our link popularity and also improves search engines ranking.

The importance of link exchange is very high.
with the help of it you can increase the the back links of the site.

Link exchange is very important because it increase the back link of any site.
back link increase the ranking of site.

Link exchanging is one of the best ways to promote your
websites. It not only improves your
website PageRank and link popularity, but improves its search
engines ranking.
To get into the topmost position on the search engine and make your business more profitable it is very essential to pay attention to link building which is often mentioned as the trump card of SEO.