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Chegg is #1 in textbook rentals. Don

YouTube is a place to discover, watch, upload and share videos.

Prezi is the zooming presentation editor

Over 1 million professors & 10 million opinions. Rate My Professors is the best source of professor ratings based on student feedback. Find & rate a professor!

CourseRank is the free planning tool that gives students unprecedented access to information about their classes, their professors and, most importantly, their options while in college.

同步你的Instagram照片到人人、豆瓣和饭否，支持iPhone/Android客户端

Create your guild website. Our guild hosting service is faster, better, easier & gives you the power to run an awesome guild or clan website. Start for free!

Online diagram software. Create and share flowcharts, network diagrams, floorplans, user interface designs and other drawings online with the Gliffy diagram editor.

Need a new way to feed your golf addiction? Enter your golf scores and we will make it easy for you to share with friends, get a handicap, and better understand your game.

Top 30 Home of PointBlank Ballistics Software

CollegeHippo is the social platform for college students, designed by students like yourselves. CollegeHippo has everything college related: from classes, jobs, housing, classifieds and textbooks, our goal is to create the best possible college exper...