Complex sentence: Founded in 2007, the AmalgamDigital.com store makes promotional, distributional, and PR services available to aspiring independent artists who register as vendors at AmalgamDigital.com, also enabling them to sell music, videos, podcasts, and other material through the online store.
Split into simpler sentences: Founded in 2007, the AmalgamDigital.com store made promotional, distributional, and PR services available to aspiring independent artists who registered as vendors at AmalgamDigital.com. This also enabled them to sell music, videos, podcasts, and other material through the online store.