There are many program and plugins you can use with SampleTank.

IK Multimedia makes many outboard plugins, such as Amplitude, T-Racks, and others.

Sonic Reality provides many packages of SampleTank-ready sounds.

Chicken Systems makes Translator, a program that can convert most any sound and instrument format into SampleTank format.

SamplerZone Sites

Kontakt.org
HALion.org
EXS24.org
GigaStudio.org
EmulatorX.org
ReasonNNXT.org
SampleTank.org
AkaiSamplers.org
RolandSamplers.org
EmuSamplers.org
EnsoniqSamplers.org
KurzweilSamplers.org
UnitySamplers.org
YamahaSamplers.org
SoftwareSamplers.org
HardwareSamplers.org