Retargeting is a form of online advertising that focuses on display ads to the visitors after they have left your website. It is a cookie based technology. It has proved to be of benefit to B2B businesses, according to the statistics. Retargeting can be done in three ways.

 1. Pixel-Based Retargeting: The marketer places JavaScript code on his website which drops a cookie on a visitor's browser.

2. List- Based Retargeting: The marketer prepares a list of contacts from email marketing campaigns or for some other source. It then serves them with a specially targeted ads on the Social Networking platforms.

3. Search Retargeting: Search retargeting targets user audiences based on previous keyword searches, they have conducted on search engines such as Google, Yahoo & Bing.

There are many tools available in the market that can be used to design the strategy for retargeting. Read more about it in the article written by Jessy Smulski (a valued contributor to Business 2 Community) at: http://www.business2community.com/b2b-marketing/tips-retargeting-b2b-leads-beginners-guide-01441414