Intweet is a project mainly written in RUBY and SHELL, it's free.
Twitter. Keywords. Alerts.
I needed something to keep me posted on Webbynode's-related twitter posts and found out that there were some Apps on AppStore that would charge you .99 EUR per keyword. Nah. I Installed Prowl for USD 2.99 instead so I can get any notifications I can take, straight from a Ruby daemon. Then I just deployed this to a Webby...
Disclaimer: The code is very dirty but works for my needs :)
To install on Ubuntu:
$ git clone git://github.com/fcoury/intweet.git $ cd intweet $ ./install.sh
$ cp config.yml.example config.yml