Warlord Games is offering a free pdf of their Project Z zombie miniatures rules.
Even Death May Die is a set of free wargames rules for Zombie apacalypse games. The author writes:
Clocking in at 33 pages and nearly 8000 words, “Even Death May Die” is a 28mm zombie themed wargame. It uses eight-sided die and features rules for user-constructed battles as well as a campaign game rule set! There are multiple factions in the game, including Survivors, Zombies, Bandits, and the Military.
So yeah, this thing here has been a labour of love for me for the past few months, so I hope you guys find it enjoyable!
I look forward to hearing what you have to say!
Massive Voodoo has a nice tutorial on painting Zombicide figures.
BioSyndrome is a community created game of zombie survival horror.
Zombie Enclave is a free print-and-play solo boardgame of the Zombie apocalypse.