CacoCloud!

Tiny Tiny RSS is an open source web-based news feed (RSS/Atom) reader and aggregator, designed to allow you to read news from any location, while feeling as close to a real desktop application as possible.

Features:

Roundcube webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation, message searching and spell checking. Roundcube's most prominent feature is the pervasive use of Ajax technology.

RSSOwl collects data from RSS-compliant sites are called RSS readers or "aggregators.

SquirrelMail is a standards-based webmail package written in PHP. It includes built-in pure PHP support for the IMAP and SMTP protocols, and all pages render in pure HTML 4.0 (with no JavaScript required) for maximum compatibility across browsers. It has very few requirements and is very easy to configure and install. SquirrelMail has all the functionality you would want from an email client, including strong MIME support, address books, and folder manipulation.

Open SourceWebMail Lite is a free community edition of full-featured WebMail Pro server application intended for users who need a clean and simple web mail application, which is fast and easy to use. Whether you need a free web browser based email client software for Windows ASP.NET or free web browser based email client software for Linux PHP, please download our software and use it at no cost for as long as you wish. You may also want to compare the WebMail Lite application features vs. WebMail Pro application by clicking the following link. »

Microreader - Very simple web based RSS/Atom reader. Written in python with bottle.

RSSPBRRY is a free and open source RSS feed reader distributed under the AGPL v3 license. It's a software fork of Miniflux by super-coder Frédéric Guillot.

phlyMail is an advanced webmail and groupware solution featuring unlimited profiles, multiple users, a calendar, contacts list and much more

Sparse rss is a very simple and basic RSS reader for Android 1.5 or later. It includes a desktop widget.

Newsflow brings all news of your favorite websites in one place, so you don't have to spend time on web browsing any more, you'll always be in touch with the latest news and articles from around the world.

Postaci (Turkish for Postman) is multiplatform Webmail software which is database independent, multilanguage, POP3/IMAP, and fully MIME-compatible. While using POP3 mode to fetch messages it uses database fields to simulate IMAP folders, on which you can save, move, delete, and read e-mail. It also contains an adressbook, a notebook, and a bookmark manager application.