Help:RSS
RSS is a mechanism to acquire content from different sources on the Internet and display it in a web page. You can often find the RSS feed from a website by looking for one of the following icons:

EcoliWiki allows you to embed RSS feeds from websites that provide RSS using the following markup
<rss>URL|max=number_to_show</rss>
For example
<rss>http://public.ecolihub.net/wordpress/?feed=rss2&category=ecoliwiki&cat=3|max=3</rss>
is how EcoliWiki pulls the latest news from the EcoliHub project blog and displays it on the homepage.