Sorted according to the number of Stack Overflow posts (as of now) in which the comic is linked. The posts themselves can be seen by clicking the “posts” link.
#7: Regular Expressions (36 posts)
#5: Password Strength (60 posts)
#4: Wisdom of the Ancients (63 posts)
#2: Random Number (74 posts)
#1: Exploits of a Mom (680 posts)