Thanks to Fake Teams member raygu for alerting me to a prospect website, Top Prospect Alert. It runs down how each "top" prospect did in the previous day's games and provides a convenient location for hard-core fantasy players to follow their own prospects and, more importantly, the as-yet-unowned ones, too.
I typically use the "bookmark" feature over at MiLB to track my own players, but it has been screwy so far. I'm glad to have been alerted to Top Prospect Alert. Once MiLB gets its act together, the two websites should prove to be excellent complements to each other.