All Our Ideas is a platform that enables groups to collect and prioritise ideas in a transparent, democratic, and bottom-up way. Open source ruby stack available.

Learn Ruby in an app.

Interactively explore programming languages online. Like Codeacademy on steroids.

Octopress - an HTML5 mobile-first Jekyll-based static site generator

A side-by-side reference sheet

I hadn't considered using Sinatra this way, clever.

A stylesheet authoring framework using Sass.

Web app monitoring, available for Ruby, Java, .NET and PHP.

Logic-less templates without if/else statements. Multiple languages.

"Docsplit is a command-line utility and Ruby library for splitting apart documents into their component parts: searchable UTF-8 plain text via OCR if necessary, page images or thumbnails in any format, PDFs, single pages, and document metadata"

I barely find time to write posts, let alone do what PeepCode does and come up with a design a post. Interesting background post though.

Sub-pixel font rendering into images via an OSX ruby script. Gives much better results than Photoshop.

Using the Flickr-fu gem to add Flickr goodness

Fantastically written introduction to Ruby.

Using Cucumber and Webrat for automated testing of Rails apps.

Using jQuery with Rails

breakdown of what goes into a rails app, so simple even I can understand it.

Been meaning to make a note of this link list for a while. Very useful

Good tips for managing your Rails apps

More articles to help you get up to speed with Rails (yep, I'm pretty taken)

A better way of getting Rails to play with Apache using SCGI rather than FCGI. Yes I've been playing with Rails recently, and yes I'm loving it.