HEATKEYS

Twitter is without a doubt the best way to share and discover what is happening right now.

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, upload an unlimited number of photos, post links and videos, and learn more about the people ...

Good old Wikipedia, great new look

Document publishing platform for all popular file formats: pdf, ppt, doc, txt, xls, and others.

Prezi is the zooming presentation editor

Translation-Dictionary offers free online dictionary and free translation services for many languages. i.e. English-French translation and English-Chinese translation

Rakuten Group is one of the world

Google+ aims to make sharing on the web more like sharing in real life. Check out Circles, Messenger and Hangouts, just a few of the things we've been working on.

cooldocument.com提供各种清晰版word、excel、powerpoint文档的免费下载，文档格式包括doc、docx、xls、xlsx、ppt、pptx和pdf。

Family Practice Notebook is a library containing the following 31 books: Cardiovascular Medicine, Gynecology, Hematology and Oncology, Human Immunodeficiency Virus, Infectious Disease, Jokes, Pathology and Laboratory Medicine, Pulmonology, Practice M...

RankW is a free web service for webmasters that lets you analyze your competitor

Readcube is a free, simple, academic software and reference manager for researchers. Read Cube helps researchers organize, annotate and stay on top of new research literature.