Weave (BETA 1.0) is a new web-based visualization platform designed to enable visualization of any available data by anyone for any purpose. Weave is an application development platform supporting multiple levels of user proficiency – novice to advanced – as well as the ability to integrate, disseminate and visualize data at “nested” levels of geography.

freeDive transforms Google Spreadsheets into searchable databases that can be embedded in web sites.

ThinkUp is a free, open source web application that captures your posts, tweets, replies, retweets, friends, followers and links on social networks like Twitter and Facebook.

With ThinkUp, you can store your social activity in a database that you control, making it easy to search, sort, analyze, publish and display activity from your network. All you need is a web server that can run a PHP application.

Pixelpost is an open-source, standards-compliant, multi-lingual, fully extensible photoblog application for the web. Anyone who has web-space that meets the requirements can download and use Pixelpost for free!

ProjectPier is a Free, Open-Source, PHP application for managing tasks, projects and teams through an intuitive web interface. It must be downloaded and installed on your own web server. ProjectPier will help your organization communicate, collaborate and get things done Its function is similar to commercial groupware/project management products, but allows the freedom and scalability of self-hosting. Even better, it will always be free.

Today, the White House has released four of the modules it has developed back into the open source community. The first two are to improve scalability: Context HTTP Headers improves server efficiency, while Akamai as the name suggests integrates Drupal with Akamai's global cache network. Next, and probably of less use, is GovDelivery, which replaces Drupal's SMTP back-end and integrates with the internal governmental email system. The last module (and the most useful for the world at large) is Node Embed. As the name suggests, it lets you nest Drupal nodes inside other nodes -- Slideshows within Articles, an Author bio embedded within a blog post, and so on.

OpenStreetMap is a free editable map of the whole world. It is made by people like you.

OpenStreetMap allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth.

DocumentCloud will be an index of primary source documents and a tool for annotating, organizing and publishing them to the web.

Documents will be contributed by journalists, researchers and archivists. If your organization does document-driven investigations, we’d love to have you join us. Using the DocumentCloud workspace, you can upload documents, share them with the rest of your organization and get back the full text and a PDF copy as well as access to a structured search engine and analytical tools to help you make the best use of your documents. You’ll even be able to download a lightweight javascript document viewer that will let you display documents right on your own website.

At the moment, we’re working towards an initial beta release. As we develop the DocumentCloud application, we’re packaging up the components that support it, and releasing them as open-source projects. Our releases so far include: a utility for extracting images and text from document files, an asset packager, a library of functional helpers for JavaScript and a parallel processing system.