Here's something for cricket lovers. At present, there's not much support for cricket in Joomla CMS. It is possible to embed a widget inside a joomla component quite easily and see the scores etc. However that would mean leaving what you are doing and visiting the component with the widget every once in a while. Joomla supports modules which are floating areas that can be displayed along the sides of other components. So even if you are writing a blog, contributing to a forum or browing the classifieds, you can still know what the score is.
I created a small module that displays the current score and the teams playing. The module fetches the rss feed from http://www.cricinfo.org and displays in a module. The cricinfo site only gives the total score and does not provide individual scores as part of the feed. For that matter, none of the sites do. If you know of a site that does provide such a feed, please let me know. The feed should refresh frequently enough, at least once every minute. Anything more is a plus.