Communication

A Usenet newsreader supporting threaded discussions and multiple servers.

Free

Open source gadu-gadu protocol instant messenger client for Linux.

Allows you to hold private business conferences with your clients or employees.

Free

Follow all the updates from your friends on multiple Twitter accounts.

Intego Personal Antispam is the ultimate spam-fighting tool for Mac OS X.

Free

Compact Twitter client based on Adobe AIR.

Free

Phone service, full of features and extremely easy to use...

Free

Microblogging client for Twitter, Identi.ca and StatusNet.

Free

Portable version of Mozilla's Thunderbird for you to take your email with you.

Mature, high performance, low cost mail delivery app for sending personalized email messages to large groups of contacts.

Free

Mail Notification monitors your mailboxes for new mail.

We're all also aware of the painful redundancy of manually sending a newsletter...

Draw, layout, and web publishing application built on the idea that everything...

Built on top of the PowerMail Engine...

Free

Mailsmith, the email client from the makers of BBEdit

Viewfinder dramatically simplifies the process of finding, downloading, and using images from Flickr.

Free

Gmail notifier for Apple Macintosh users.

This phone recording software allows you to manually record telephone calls.

Free

Multi-protocol Instant Messaging client.

Software that gets the right people to the right place at the right time

Free

Plug in for Apple Mail to generate serial mailings.

Xfire client for the Mac. Features: Supports clans...

Free

Simple drag'n'drop application.

Multiprotocol Adium instant messaging client that can connect to AIM...