The Apache HttpComponents™ project is responsible for creating and maintaining a toolset of low level Java components focused on HTTP and associated protocols.

The Facebook SDK for Android is the easiest way to integrate your Android app with Facebook's platform. The SDK provides support for Login with Facebook authentication, reading and writing to Facebook APIs and support for UI elements such as pickers and dialogs.

Flurry Analytics provides an incredible amount of actionable intelligence into how and where people are using your app. You can quickly identify your most engaged and valuable users by grouping them on key characteristics such as demographics, location, language preference, and usage of select features in your app.

Protocol Buffers are a way of encoding structured data in an efficient yet extensible format. Google uses Protocol Buffers for almost all of its internal RPC protocols and file formats.

kObjects is a collection of small ("kilobyte") projects. Most of the projects are suitable or designed for the Java 2 Micro Edition (J2ME/MIDP).

The ksoap2-android project provides a lightweight and efficient SOAP client library for the Android platform. It is a fork of the kSOAP2 library that is tested mostly on the Android platform, but should also work on other platforms using Java libraries. It is still using Java 1.3 so should work fine on JavaME, Blackberry and so on.

kXML is a small XML pull parser, specially designed for constrained environments such as Applets, Personal Java or MIDP devices.

What is Signpost? Signpost is the easy and intuitive solution for signing HTTP messages on the Java platform in conformance with the OAuth Core 1.0a standard. Signpost follows a modular and flexible design, allowing you to combine it with different HTTP messaging layers. Click here for a list of supported HTTP libraries. Signpost is a community effort and may be downloaded, modified, and redistributed under the terms of the Apache License version 2.

XmlPull project is dedicated to be a site for * for general Pull parsing promotion/education (including StAX) and in particular to contain easy-to-reuse samples and code fragments * a resource for discussing new ideas and concepts related to pull parsing * a java namespace (org.xmlpull.*) and project location of a free implementation of the event object API and Factories, based on the StAX XMLStreamReade and old Common API for XML Pull Parsing * as java namespace and project location of StAX and XmlPull based utilities and samples such as: - providing an XML stream from a DOM tree - a DOM builder - SAX adapter - JUnit tests * as a maintenance resource for the existing XmlPull interface