RailRoad: Ruby on Rails Class Diagram Generator

I am not sure I will ever need this but it could be useful:

RailRoad

Gmail Ruby Gem

Here is another gem for use with gmail:

ruby-gmail

Alchemist Ruby Gem: Unit Conversions

Nice gem for those who do unit conversions:

alchemist

Scraping Gmail

Scraping gmail for unread emails:

Scrape email

Test

Test