Here are some more links about Lincoln. I hope they are helpful.

http://www.ukstudentlife.com/Travel/Tours/England/Lincoln.htm#Introduction

This is a nice link that gives you virtual tours of Lincoln Centre
http://www.visitlincolnshire.com/exec/106195

Another useful website
http://www.bbc.co.uk/lincolnshire/student_life/student_accommodation.shtml