Pingo

Pingo is not a penguin. It`s a pinging tool. The idea behind this was my crappy ADSL-connection. I wanted to track and get a log of whenever it went down. In Pingo you can define host list that is pinged. If 50% of hosts are not responding to ping, the connection is determined as DOWN. Pingo shows it`s status in system tray so it`s easy to see if your network connection goes down (nowadays I use it when I`m using mobile connection - I don`t have to wonder why browser is not loading pages because I can see it from task-tray).