Sitemap is a tool that inform search engines about the structure of your site. By placing a sitemap on your website, you enable Search Engine crawlers (like Google) to find out what pages are present and which have recently changed, and to crawl your site accordingly. You don't have to manually submit sitemap as it automatically (if settings is enabled in the admincp) Notify Popular Search Engines (Google, Bing) when sitemap changes.
Course plugin allows you to add an online course facility to your website. A very resourceful module for both an educational based website or when you just need to offer courses to your members . Course Plugin is built with all the features you will need to add a learning feature to your website. Course module is everything you need.
Contest module turns your website to a challenge Battlefield. Members can compete in BLOGS, PHOTOS, MUSIC and VIDEO contests. Contest owner exclusively specify the terms of the contest , the Reward and duration (Contest, Voting and Entries Submission).