Critology has the ability to:
-record highest normal damaging-hits/heals with the name of the mob/player on which it happened and the time that it happened
-record highest critical damaging-hits/heals with the name of the mob/player on which it happened and the time that it happened
-record your average values for damage/heals and crits
-record the historical crit chance of spells
-view highest hits and or crits in spell tooltips
-view names and time in tooltips
-notify you when you break a record in the default chat frame
-notify you when you break a crit record graphically
-notify guild and or party when you break a crit record
-take a screenshot when you break a crit record

The options menu is available in the blizzard interface add-on options section or by using the command /critology