If the source doesn't need to be publicly available: amazon.com (at least they use tons of perl)

Update: Other well known projects are imdb.com (tinita++ for the info) and slashdot (or slash, the code base).

In reply to Re: What is the (greatest|biggest|largest|supreme|most known) project made (in|with) perl? by moritz
in thread What is the (greatest|biggest|largest|supreme|most known) project made (in|with) perl? by bdimych

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