Diigo

Diigo provides a browser add-on that can improve your research productivity. As you read on the web, instead of just bookmarking, you can highlight portions of web pages that are of particular interest to you. You can also attach sticky notes to specific parts of web pages.
Diigo

DonorsChoose

DonorsChoose.org is an online charity that makes it easy for anyone to help students in need. Here's how it works: public school teachers from every corner of America post classroom project requests on DonorsChoose.org. Requests range from pencils for a poetry writing unit, to violins for a school recital, to microscope slides for a biology class. Then, you can browse project requests and give any amount to the one that inspires you. Once a project reaches its funding goal, we deliver the materials to the school. You'll get photos of your project taking place, a thank-you letter from the teacher, and a cost report showing how each dollar was spent. If you give over $100, you'll also receive hand-written thank-you letters from the students. DonorsChoose.org's simple JSON API allows developers to pull DonorsChoose.org classroom project listings into their website or application using project selection criteria of their choosing. The JSON API has been used by DonorsChoose.org partners like Chevron, SONIC Drive-In, NBC Universal, Bing, PayPal, and others to build high-profile highly customized giving and cause marketing experiences. The API also enables developers to donate to projects or purchase gift cards without routing users to DonorsChoose.org for payment.
DonorsChoose

What The Trend?

Find out what's trending on Twitter and why. For each trend, What The Trend provides a quick explanation of why it's trending (these blurbs are edited by users, wiki-style). You can also see the latest tweets, Flickr photos and news stories.
What The Trend?

YOYOIndia

YOYOIndia is the first major social networking site dedicated for everything India built from ground up to present and bring together people based on their interests, geography and offering open API for developers to build their own YOYO’s.
YOYOIndia

Brightcove

Brightcove is an online digital media platform used by media companies, businesses and organizations worldwide to publish and distribute video on the Web. The on-demand platform is used by professional publishers to power online video initiatives. The Brightcove Media API allows users to interact with their Brightcove Media Library. This API uses REST and JavaScript protocols. Responses are formatted in XML and JSON.
Brightcove

Toggl

Toggl is an online time tracking tool for freelancers and teams. Toggl provides you the most basic features needed for fast and effective time management. Toggl has desktop widgets and an iGoogle gadget for even faster access.
Toggl

Etsy

Etsy is an online marketplace for buying and selling handmade things. The Etsy API lets you develop applications built on this fast growing e-commerce platform.
Etsy

Eviscape

Eviscape is a social network communication platform: Discover, Publish, Connect, all based on Evis. An Evi can be a short message or full page posting to be shared with others.
Eviscape

Song.ly

Song.ly allows users to share and discover music on Twitter. Your followers will get a short link to a page allowing them to play the song right in the browser without having to download it first!
Song.ly

Microsoft Translator

The Microsoft Translator AJAX API provides automated translation of web pages and portions of web pages into different languages.
Microsoft Translator