barwen.ch provides very low capacity Linux shell accounts: for $1 per month, you get about 500mb of storage and 500mb of data transfer. You can use it for low traffic CGI scripts, IRC bots like eggdrop, IRC bouncers like ZNC, screen sessions, somewhere to ping or telnet or traceroute from, ipv6, vhosts, finger and a bunch of other stuff.
You can host secondary DNS and MX here.
You can log in with SSH or an in-browser terminal using your Google account.
Drop into #barwen.ch on irc.freenode.net or look at recent channel activity.
Count of users who are running processes and logged in