Here are the kittydays and observances for August. One of them is more interesting for online kitties.
Aug 1 World Wide Web created, 1990
Aug 1 Swiss National Day
Aug 8 World Cat Day
Aug 15 National Check the Chip day (fixed on the 15th)
Aug 15 International Homeless Animals Day (rotates through the week)
Aug 17 Black Cat Appreciation Day
Aug 22 National Take Your Cat to the Vet Day