Link Popularity is a measure of the quantity and quality of other web sites that link to your site on the internet at any given time. It is considered an off-the-page criteria that is greatly utilized by search engines to determine the overall importance and quality of your site to the online community. Because of its impartial nature, a site with a very high number of incoming links is usually viewed as highly relevant to the online community at large and thus highly visible within relevant search engine results. Whereas a content-poor site will attract fewer incoming links and thus hold little value to the same visitors.
Put your link exchange work on autopilot! Don't waste your time browsing the net, searching for link exchange partners.Here are the good few ones:

Axandra offers web site promotion software tools for search engine submission, search engine optimization, search engine ranking, link popularity and more. Free downloads available.IBP is the award-winning web site promotion suite that helps you to get top 10 rankings in Google, Yahoo and all other major search engines. IBP helps you with all important aspects of on-site web site promotion. It includes more than 15 professional website promotion tools, including tools for keyword generation, a top 10 search engine ranking optimization, search engine submission, directory submission, ranking checking and more. ARELIS is a top rated software program that helps you to build a powerful business network quickly and easily. It's the top rated website promotion software tool for off-site promotion. You'll benefit from highly targeted free traffic to your web site, new business contacts, a higher link popularity, higher search engine rankings and more sales.

LinkAssistant is a new-generation SEO tool that improves your website's search engine rankings by increasing its link popularity. LinkAssistant provides a more effective way to promote your website. You will be able to do your SEO tasks tens times faster than your competitors. With the help of LinkAssistant:

your website will get higher link popularity

your website will get a higher ranking on search engines

you'll get highly targeted visitors to your web site

you'll get more customers and more sales

Designed for both novice and expert users, LinksManager can manage link content in many ways: Create pages of exit links, relevant reciprocal links with related sites, one-way links, a large themed directory or portal site, a news resource, advertisements structured as links, other exit resources, dictionaries, custom search engines, and more!

AutoLinksPro is the ultimate linking solution. Now with complete link exchange automation and many other features this is the most comprehensive and user-friendly link exchange software solution on the market. AutoLinksPro link exchange software was built for the search engines to help improve your search engine rankings, traffic, and sales!

This is the best Link Exchange website, I have come across. Link Metro - Completely automates your link building, Monitors your link partner status,Automatically adds link partners to your website and Add/Modify/Delete link page categories.

GotLinks.com is a link exchange service designed to provide you with access to thousands of link exchange partners in GotLinks.com directory. You need to register for an account and create a link directory page on your web site. Then you have to insert gotlinks directory code into this page and create a link to it from your home page. You will then be included in the GotLinks.com member directory and have access to 6,136 link exchange partners. GotLinks.com reciprocal link exchange service will help you to increase your link popularity and improve your search engine ranking. Please note you cant trade your link if your site is not registered with google.