Content Idea Generator - Free tool creates ideas for your content marketing strategy
RANDOM.ORG - RANDOM.ORG offers true random numbers to anyone on the Internet.
Content Marketing Stack - A curated directory of content marketing resources
The Surrealist - Several online generator toys.
Keyword Tool & Content Assistant - Content optimization tool to boost your rankings
Random Phrase Generator - This site generates random phrases and sentences - sort of like Mad Libs meets Magic 8-ball.