Conferences

Midwest Theory Day - Held twice a year, usually on a Saturday in December and on a Saturday in April. Details of past and future meetings.
http://facweb.cs.depaul.edu/jrogers/MTD/

Theoretical Computer Science Conferences & Journals - Conference calls for papers, conference and workshop programs, journal calls for papers.
http://ai.stanford.edu/~suresh/theory/conf/conf-home.html

STOC - ACM Symposium on Theory of Computing.
http://sigact.acm.org/stoc/

Computational Complexity Conference - Annual conference that deals with computational complexity broadly defined.
http://facweb.cs.depaul.edu/jrogers/complexity/

SIGACT News Theory Calendar - Calendar of upcoming theoretical computer science events and a list of recently released books in the field.
http://www.cs.uiowa.edu/theoryc/

IEEE Symposium on Logic in Computer Science - The LICS Symposium is an annual international forum on theoretical and practical topics in computer science that relate to logic in a broad sense.
http://www2.informatik.hu-berlin.de/lics/