- http://www.catb.org/jargon/html/H/hacker.html
- http://www.catb.org/esr/faqs/hacker-howto.html
- The guys at hack-a-day or nyc resistor are hackers.
- Fabrice Bellard is a hacker, for reasons you can see at http://bellard.org/
- People who are _really good_ at *nixen are hackers, because of the nature of the beast. Unix isn't about learning everything from a book, instead you could hack it with what you know.
- PG is a hacker for using LISP to build Viaweb (and ARC etc), but not for "hacking" the startup ecosystem (that's just overuse of the term).
- DHH is a hacker, for the creative ways in which he pushed Ruby
The key thing is "hack value". Hack value is about your technical expertise and your creativity, and both of these things have to be present.