ConvertAll - A comprehensive unit conversion program.
Converber - Xyntec Automation provides project management and systems integration.
XE.com - XE.com Inc. (XE) is a Canadian online foreign exchange services company.
Converter NOW - A simple, immediate and fast unit converter!
Tweetbot - Sync your timeline across your iPhone, iPad, and Mac. Mute tweets by user, hashtag, tweet source, or keywords (including regex). 3rd Party support for image, video, read later, and timeline sync services.
Yahoo! Finance - Currencies Center - Currency Converter from Yahoo! Finance.