Hello Freshmen!
Here are some useful websites to check out to get the most out of Yale. Not all of these are well known on campus (which is why Saybrook advising rocks), but you should always have these in the back of your mind as your tool box. I am giving a short description of what each website does, and am also writing shortcuts that you can type into the address bar to get to the website, wherever applicable
1) http://yalestation.yale.edu/
Shortcut: yalestation.org
Description: Portal to sell or buy books from fellow students, check the weather, look up event posters, advertise organizations, look for furniture, check out restaurants
2) https://yalestudentjobs.org/
Description: Website to apply for jobs, and log into time-sheets for jobs under Yale employees.
3) http://www.yale.edu/sfas/
Description: Umbrella website for offices in 246 Church Street: Dining, ID Center, Financial Aid, Registrar, Associated Student Agencies, Student employment.
4) http://www.yale.edu/sis/
Description: Website containing your vital personal information: meal plans, academic course schedule, financial aid and Yale account statements, OCS (the tool to make your course worksheet), unofficial transcript
5) http://students.yale.edu/oci/search.jsp
Shortcut: yale.edu/oci
Description: OCI stands for Online Course Information (read: all that good stuff in the Blue Book is now online)
6) http://yale.bncollege.com/webapp/wcs/stores/servlet/BNCBHomePage?storeId=16556&catalogId=10001&langId=-1
Shortcut: yale.bncollege.com
Description: Website for the Yale bookstore. Buy and sell books, Yale apparel here.
7) http://www.yale.edu/directory/
Shortcut: yale.edu/directory
Description: Look up basic information (such as residence, local phone number, P O Box, and email) of all Yale affiliated people
8 ) yale.edu/facebook
Description: Most useful for looking up pictures of people you are about to meet. It also tells you their majors, and hometowns (may be useful, depending on why you want to look up someone 
).
9) https://www.mail.yale.edu/login.php?Horde=db3535bad3e19e353e6eeaf567d4f1ab
Shortcut: www.mail.yale.edu
Description: Online email client
10) http://www.yale.edu/its/stc/
Description: Information about IT resources at Yale
11) http://www.yale.edu/oiss/
Description: Website for the International Center at Yale. International students should be familiar with the resources available through this site.
12) http://orbis.library.yale.edu/cgi-bin/Pwebrecon.cgi?DB=local&PAGE=First
Shortcut: orbis.library.yale.edu
Description: Website for checking and placing holds on books in the Yale libraries, ordering books if they are not in the library system
13) http://www.yale.edu/transportationoptions/shuttle/
Shortcut: yale.edu/shuttle
Description: Online system to track Yale shuttle routes real-time, know bus schedules
14) panlists.yale.edu
Description: Manage your panlists/ email lists
15) http://business.yale.edu/map/
Shortcut: yale.edu/campusmap
Description: Interactive campus map, search for buildings on campus by their names
16) http://www.yale.edu/campusmail/
Description: All information about receiving and sending paper mail on Campus
17) https://portal.yale.edu/render.userLayoutRootNode.uP
Shortcut: portal.yale.edu
Description: Summary of a lot of websites including student affairs, sis, yalestation. Great to glance once in a while to make sure that you are not missing anything.
18) http://www.yale.edu/yalecollege/student_affairs/
Description: Register student organizations here (I will be writing a post on how to do this soon)
19) http://www.yalebulldogs.com/information/facilities/payne_whitney_gym/membership/index
Description: Check out timings for Payne Whitney Gym.
20)http://www.yale.edu/career/
Shortcut: yale.edu/career
Description: Undergraduate Career Services Website. Check out resources for pre-med, pre-law, community service, internships at Yale.
21) http://saybrookblog.com/
Description: Uhm…makes the number of Yale websites to a blackjack 21
Feel free to comment!