This list is always available by clicking on the 'Top Prospects' tab at the top of each page.
On a related note, I've seen some Rays prospects lists on other sites lately that have included players who are no longer eligible. Here is part of the summary of eligible 'prospects' that was posted after the season:
We use the same playing time cutoffs for prospect status as Baseball America:
130 MLB at-bats, 50 MLB innngs pitched, or 30 MLB relief appearances.Here are the players who were prospects at the beginning of the 2011 season and how much career playing time they accrued through the end of 2011 (regular season only):
Pitchers: No Longer Eligible
Jeremy Hellickson - 225.1 innings pitched.
Alex Cobb - 52.2 innings pitched.
Cesar Ramos - 76 relief appearances.
Jake McGee - 45 relief appearances.
Brandon Gomes - 40 relief appearances.
Pitchers: Still Eligible
Jay Buente - 10 games (9 in relief) and 16.0 innings pitched.
Dane De La Rosa - 7 relief appearances and 7.1 innings pitched.
Rob Delaney - 5 relief appearances and 6.0 innings pitched.
Alex Torres - 4 relief appearances and 8.0 innings pitched.
Matt Moore - 3 games (2 in relief) and 9.1 innings pitched.
Hitters: No Longer Eligible
Desmond Jennings - 268 at-bats.
Justin Ruggiano - 195 at-bats.
Elliot Johnson - 179 at-bats.
Hitters: Still Eligible
Robinson Chirinos - 55 at-bats.
Jose Lobaton - 51 at-bats.
Brandon Guyer - 41 at-bats.
Russ Canzler - 3 at-bats.