Holden Thomas

devise-omniauth-example. OmniDevise

authlogic_openid_selector_example. Unified login for rails using the Authlogic authentication library, OpenID and the OpenID Javascript Selector (Gmail, Yahoo, etc) + Facebook and Auto registration.

jquery-howdydo-bar. jquery plugin for notifications similar to HelloBar

hostelify. hostel availability finder

delayed_paperclip. Process your Paperclip attachments in the background with delayed_job or Resque.

active_admin. The administration framework for Ruby on Rails applications.

Google-Maps-for-Rails. Enables easy display of items (taken from a Rails 3 model) with Google Map, OpenLayers, Bing or Mapquest. Geocoding + Directions included. Provides much options: markers customization, infowindows, auto-adjusted zoom, polylines, polygons, circles etc... See wiki for full description and examples.

mongoid-history. history tracking, auditing, undo, redo for mongoid