1. The Perl Programming Language
2. TextMate, a Text Editor for OS X.
https://github.com/textmate/textmate
For what it's worth, some of the things that have decreased Perl's popularity have also made me use it less, usually in favor of Go; while similar factors with TextMate make me "test-drive" a new editor every six months of so, but (so far) I always come back to TM.
The two are, to my mind, different kinds of labors, though both clearly labors of love. TextMate was the Mac text editor that embraced the Unix underpinnings of OS X: BBEdit for programmers, if you will. Its balance of Mac and Unix feel is, as far as I can tell, still unique; and I think that's why it's still actively developed despite a rather troubled history.
Perl, on the other hand, is two things: Perl 5, which still powers a lot of software in the quieter realms of commerce and research; and Perl 6, which is absolutely an aspirational, striving new language.
My take is that Perl 5 is developed further because so much depends on it, and because so many people are attached to their software written in it. Perl 6 on the other hand is developed -- by many of the same people -- in the belief or at least hope that a highly expressive, hacker-friendly general-purpose language will find its audience over time, buzz & PR be damned.