Monitter is a new addition to the ever growing list if twitter apps, it is the best application for monitoring twitter for real time updates on topics of interest. It allows you to search for three keywords at a time in a nice jQuery mashup interface.
If you are interested in tracking what people are talking about right now, monitter is the best application for that. Just enter the keywords the results will flow continuously and fade away.
Monitter is also available as a widget so that you can put the real time twitter search in your website or blog. It allows you to filter the language, currently supports English, French, Espanol and Deutsch.