If you've sent me a conference invitation or referee request to which I have not responded, please contact me again at bleiter-at-uchicago-dot-edu.  I have in recent months caught one of each that somehow landed in "junk mail" for unknown reasons.  I do check junk mail periodically, but I worry I may also miss things.  My apologies for any inconvenience.

ADDENDUM:  I should note I'm turning down most referee requests due to my on-going eye problems, which left me behind on a lot of work–though things may get better in the summer.