A company’s marketing strategy is to invest money to produce a high return on investment (ROI). The success of an online advertising campaign is not only related to the success of an online advertisement such as newsletter or banner ad. Read Rules to design and to provide a compelling message for your landing page
One of the reasons that make a jQuery popular is its extensions and plugins. Some CMS also include the jQuery library such as WordPress.
Plugins let easily add functionality to a website and sometimes one might include more than one JavaScript Libraries (Prototype, jQuery, Mootools, etc). If you have more than one library it might brake the behavior of the first one. Read Error: $ is not a function or how to resolve conflicts with other javascript libraries that use $() function
