Iria

A great variety of memory card standards currently coexist on the market. The product gamma which these cards can be coupled with is no smaller in number. From computers, both personal and portable ones, over mobile phones, mp3 players, digital cameras, up to gaming consoles – the list seems endless. Naturally, with such a large base of devices, there are many uses memory cards are required for; that’s the reason for this variety of more or less popular card types. The memory card history starts back in the beginning of the nineties, when the first PCMCIA models hit the market.
_______________
Source: InsideHW

Matth

They missed one out, though it can now be considered nearly, if not completely dead now.

SmartMedia - Wikipedia, the free encyclopedia
Capacities from 512k to 128MB, two incompatible voltage standards (5V & 3.3V) - and a lot of older hardware has other limits, such as requiring a 2MB 5V or a maximum of 16MB 3.3V.

Fuji were a major user of this standard, before switching to xD. The cards are no longer manufactured, but there still seems to be some old stock in the marketplace, though often at "rarity" prices.

__________________
Mary had a little lamb,
Her father shot it dead
Now Mary takes her lamb to school,
Between two crusts of bread