Here are some links

• Mathematics :
  
  • Mathematicians Allcock, Borcherds, Bruinier, de Jong, Freitag, Michael Harris, Grothendieck, Kiran Kedlaya, Allen Kuntson, Langlands, Mazur, Sloane, Taylor, Terence Tao, Ravi Vakil ,
  • Preprints arXiv
  • Tables Atlas of finite groups
  • Writing AMS author resource , Comprehensive Tex Archive general latex manual, xy-pic shortcuts
  • Programming gp, MAGMA
• Computer
  
  • HTML W3C HTML homepage, an HTML 2.0 tutorial
  • JAVA tutorial
• Chicago
  
  • City Weather
  • University Library homepage, Registers office, Time schedules
  • Math Department Geometric Langlands