This digital camera supports an SD|SDHC|SDXC memory card, which is the most frequently supported memory card on comparable spec digital cameras that came out more than two years ago. SD cards are by far the most common type of memory card. They are compatible with the majority of digital cameras.
There are a number of other digital cameras that support an SD|SDHC|SDXC memory currently available that you might also want to consider including the Panasonic Lumix DMC-TS5 ($249.00), the Nikon Coolpix L120 ($299.50), or the Canon PowerShot N100 ($349.99) which has better reviews.
If the memory card type of this Canon camera is too bad for you then you might also want to consider the Sony DSC-W800 ($88.00) (MicroSD (TransFlash)|MicroSDHC|MicroSDXC|MS Duo|MS Micro (M2)|MS PRO Duo|MS Pro-HG Duo|MS XC-HG Duo|SD|SDHC|SDXC) which is also higher rated.