My post on how to use public key authentication in Connectbot is one of the most frequently visited posts at arbi.se. Here are just a few, but indeed helpful, tips on how to use common commands in Connectbot.
VirusTotal and Web Analyzer
The VirusTotal API is now included in Web Analyzer. This means that when you inspect an URL with Web Analyzer, it's also sent to VirusTotal for analysis. Simply click the VirusTotal logo and view the result.