I've crafted oembed gem. It has no external dependencies at runtime and helps you to build a client for any oEmbed provider. Take a look on examples.

It's Ruby gem for generating unique random id for ActiveRecord models. You can use it e.g. if you want to hide real amount of users of your project. Acts_as_random_id available on GitHub.

Sometimes it’s necessary to encrypt traffic from some parts of site. Thereto you had to use HTTPS protocol. HTTPS is widely used all over the WEB world in applications demanding safe connecting, for example, in payment systems. Rails developers confronted by some problem: Mongrel and Webrick do not support SSL encryption. Read about Rails and SSL on Hash Train blog