AUSTIN, TX — (Marketwired) — 05/21/13 — Postmaster (), the only smart and simple way to ship, track and save on small parcel shipping, today announced it has raised a seed investment round of $600,000. The round was led by Capital Factory, Cloud Power and Zelkova Ventures, as well as a consortium of angels. Postmaster will use the seed investment round to expand its development team, build additional carrier integrations, and expand its core features and functionality.Postmaster is addressin