"A free, multi-platform instant messenger for the web and mobile devices. Sign in with your existing IM accounts, or join the imo network to share information and connect with people around the world in real-time".

"A FREE Mac client for Git, Mercurial and Subversion version control systems".

"A conforming Objective-C WebSocket client library".

"A server offers direct restful read/write access to pages it owns and proxy access to pages held elsewhere in federated space. A page is owned if it was created with the server or has been cloned and edited such that it is believed to be the most authoritative copy of a page previously owned elsewhere. A server operates as a proxy to the rest of the federated wiki. In this role it reformats data and metadata providing a unified experience. It is welcome to collect behavioral statistics in order to improve this experience by anticipating permitted peer-to-peer server operations. In summary, the server's client side exists to: (i) Offer to a user a browsing experience that is independent of any specific server; (ii) Support writing, editing and curating of one server in a way that offers suitable influence over others."

A browser split over client device & AWS server. A thin client if you will.

Alternative Mac OSX Campfire client.

"An Etherpad Lite client library for Ruby".

Open source SIP client for Mac OSX.

"A full featured SSH and Telnet emulator of VT100, VT102, VT220, ANSI, and xterm terminals integrated with a tunneled VNC client, RDP client and an X server".

"An experiment by Rick Olson to reuse the middleware paradigm of Rack, only this time for performing requests instead of responding to them from a web app".

"A messaging program which supports text, voice, and video chat and file transfers over many different protocols. You can tell it about your accounts on all those services and do all your chatting within one application".

"Moving State to the Client Side".

Ruby CLI and API for Jenkins continuous integration server.

"Rails 3 Client Side Validations".

"Asynchronous HTTP Client (EventMachine + Ruby)".

"Gives you an API for realtime pub/sub in the browser. On the server, it gives you hooks for security and message routing. It is fast and cross-browser compatible".

"A 100% JavaScript Twitter client experiment".

A WebSocket server and client for Ruby on Rails.

"Twitter realtime API client". Uses EventMachine.

wondering to what extent designers influence client thinking that they need 'everything' designed/answered/polished up front? not inferring

"An HTML5 + JavaScript (AJAX) viewer for VNC, which makes use of a server-side proxy written in Java. The current version is almost as responsive as native VNC and should work in any browser supporting the HTML5 canvas tag".

"The http client from rfuzz extracted, stripped down, and all wrapped up into its very own gem". An alternative to Net:HTTP?

"An HTTP server for sleepy Rack applications. It is based on Unicorn, but designed to handle applications that expect long request/response times and/or slow clients".

"Ruby-based client for API of the popular GTD app Things, available on the Mac". Uses AppleScript.

"Ruby client for Rserve, a Binary R server (http://www.rforge.net/Rserve/). Follows closely the new Java client API, but maintains all Ruby conventions when possible".

Possibly describes a way to get my O2 Broadband router to do "full cone" NAT instead of "symmetric", but it's not totally clear this is actually possible on the newer versions of firmware.

"We believe that the real-time web is fantastic and should be easy to implement. This is our simple solution, powered by HTML5 websockets". By New Bamboo.

"A simple HTTP and REST client for Ruby, inspired by the Sinatra's micro-framework style of specifying actions: get, put, post, delete".

"Simple Ruby HTTP/REST client with a sane API".

"A terminal based Twitter client".

Modular HTTP client library using middleware heavily inspired by Rack.

"Gowalla client(ish) for OS X with a MacRuby flavor".

"Syncro let's you synchronise Ruby classes and state between remote clients. Syncro also supports offline sync."

Ruby client for OpenStreetMap.

"A native Mac application that embeds its own SMTP server. It also features an e-mail client browser, enabling instant viewing of both raw content and HTML rendering, so you can see how your mail looks when delivered".

Depressingly old-school, but possibly useful for getting an idea of the concerns a client may have.

An interesting client-side alternative to e.g. Sass.

"Heavy metal Ruby SOAP client library".

Amusing quotes.

"An AFC client meant to interface with the iPhone".

So your content expires in an hour. How the hell can you deploy cleanly?

"So this middleware disables the cache?" you ask. "No" I respond. That would be dumb.

This middleware makes all ETags code revision number specific, and gradually aligns all expiry times to a single point in time.

So you tell the server you are going to deploy in an hour, it makes sure all clients have forgotten their cache in an hour, and then when you deploy the ETags change, so they will get fresh content.

By sitting it in front of Rack::Cache your app will see no more dynamic hits than it did before! Rack::CacheBuster only invalidates the cache on the clients, so Rack::Cache still has a valid for the duration of the wind down!

And for bonus points, I've even given you some cap tasks, and a Rails specific helper!

"A Nokogiri based XMPP client library".

"A gateway between Jabber clients that talk HTTP and Jabber servers that talk XMPP. This is a Jabber standard called XEP-0124".

REST in JavaScript.

IRC Client for OSX using RubyCocoa.

"Ruby HTTP client based on libcurl".

Asynchronous HTTP Client (EventMachine + Ruby).

S3 Client (for Mac OS X)

"Best practices in managing HTTP-based client sessions".

Builds HTML forms based on the WSDL.

IRC client for iPhone.

Works with email client developers and the design community to improve web standards support and accessibility in email.

"Fast, full-featured twitter client for iPhone and iPod touch".