Here are some popular social networking sites for students that I found this weekend:

AlumWire
AlumWire is an interactive site for college students and alumni to network for job opportunities.

B4Class
Members enjoy free use of all site services and features, including detailed online profiles, photos, group chat, one-to-one video chat, onsite email, event planning and detailed member searches.

BuddyUniversity.com
Use BuddyU to keep up with your friends, upload photos, videos, music and meet others from around the country. Only students with an .edu email can join BuddyU.

Campusbug
A student social networking website to make friends, browse profiles, ask questions, and get advice from other students.

Classmates.com
One of the oldest social communities for students.

CollegeMedium.com
A student version of Craigslist – where students can buy, sell and share information.

College Tonight
College Tonight is a social networking place for college students, graduate students and alumni,. This site promotes social interactivity.

CollegeClassifieds.com
This is a cragslist for college students.

Facebook.com
Yeah, you already know about it – but I have to add it here.

FriendsUnited.com
Social networking sites for students in the United Kingdom

Graduates.com
A social networking site helping graduates to stay connected.

iHipo
A place for college students and business professionals looking for networking opportunities. They have a nifty internship and job search.

LibraryThing.com
LibraryThing is a website that allows students to catalog their books online. You can access this online catalog from anywhere—even on your mobile phone. Because everyone catalogs together, LibraryThing connects people with the same books, and comes up with suggestions for what to read next, and so forth.

Pazap.com
A student trading site for buying and selling on-campus books with other students. You can even cell your phones through your cellphone with this service.

Quizilla
Quizilla is a social network for young teens who share quizzes, stories, journals, and polls.

RateMyProfessor.com
RateMyProfessor connects students together, and also allows students to rate and talk about the professors they’ve taken. They even have a Facebook app that you can add to your profile.

Scholar.com
Scholar.com is a social bookmarking website for students. You need to have a .edu email address, and your school’s blackboard system must be linked with Scholar.com.

Socialbib
Book swapping network between students.

Student.com
Student.com is an online community for college students, high school students and teens. Ages 18 to 24.

Studentbid.com
StudentBid.com is a social networking site mixed with an online auction. Studentbid is currently serving seven schools in the Boston area (Harvard, MIT, BU, BC, Tufts, Emerson, and Northeastern) and requires a valid .edu email address from a supported college to ensure out network’s safety.

StudentFace.com
A nifty social networking site for students in Australia. Members can share videos and photos.

Uloop.com
Uloop allows students to trade textbooks, promote community events and do host of other activities.

I’m probably missing a bunch, so please comment and let me know of others that you think should get added.

Seems kinda wacky to me, but they claim to take your boring, old picture and glamorize it for social networking sites like Facebook and LinkedIn.

They are currently in a beta test for limited group of 50 users, but they promise to open up the site to others very soon.

Personally, I think this is sort of cheesy.

Do you really need a pimped-out picture of yourself for a social networking site? I mean, is this really necessary?

The Google News app allows you to get news delivered right into your Facebook profile page.

You can either choose to view regular news topics (like sports, entertainment, etc.), or you can see stories that your friends have shared with you.

This isn’t exactly school-related, but definitely a way to make your time more productive when your hanging out on Facebook.

Here are 12 geeky Facebook applications that can help you select the right classes, get class notes, find a college roommate, and so much more.

Professor Ratings
This Pick-a- Prof application provides you with ratings on instructors and profs from fellow Facebook users. It’s a great way to narrow down your choices the next time you need to enroll in a class.

Get Your Class Notes
Ever miss a class and really need to get those notes? Well, have no fear. This class notes app allows you to search and find notes uploaded by your fellow students. This can definitely be a lifesaver.

Hey Math
This math application allows you instant access to a wonderful library of flash-based math movies. These cool online tutorials can give you a quick overview of common math concepts in algebra, geometry, trig, and calculus.

Zoho Office Suite
Until Google Docs gets added to Facebook, we recommend using the Zoho Office Suite app. This module allows you to have easy access to all your online docs, spreadsheets, or powerpoint presentations. Very cool.

Easy Bibliography Generator
This nifty application allows you to quickly cite a work for your paper. Just plug in your info and then select MLA, APA, Chicago, or Turabian to get the proper formatting.

Ask Questions, Get Answers
Instead of leaving Facebook to post questions at Yahoo Answers, you can simply submit your question right from your profile page. This question can then be quickly answered by Facebook community members.

Courses
Facebook Courses allows you to find classmates, and post your current courses right on your profile. This app also allows you to network with current classmates through a handy discussion board. You can even upload files, study guides, or whatever to fellow classmates.

Share Homework
Need help with a class? Share Homework allows you to find lecture notes, test help, and other study materials from classmates (and those who have taken that class in the past). It’s a great way to get advice and help for your next test or paper.

Storage Space
This handy application is powered by Box.net, and it allows you easily store and share your favorite documents, spreadsheets, pics, movie files, music, or whatever. It’s basically your own virtual hard drive. You get 20MB to start, and 20MB for every friend within Facebook that uses this application.

Find Cheap Textbooks
Did you know that the average college student in 2004 spent about $900 bucks on textbooks. And that’s probably on the low end now. Well, this application allows you quickly scan tons of websites selling the textbooks you need. Sure, there are a bunch of websites that already do this–but it’s sorta nice to have access to it from your Facebook profile.

Roomster
Roomster can help you quickly find roommates and apartments near your campus. And this application can be used with complete anonymity. There are over 1 million active listings.

Scholarium
Scholarium is a comprehensive application that allows you to share your class schedules, find classmates, rate your profs, and find out what other classmates are doing. This is a pretty cool module that is gaining in popularity.