Joel Spolsky's talk at Business of Software 2008 on being number one

Most of his early posts are excellent, drawing on his for hire experiences at Microsoft, Viacom, Juno and his owner experiences as a struggling startup.

Many of his later posts written when his own company Fog Creek has already become successful are of lesser value.

Joel has mostly run out of things to say, this is not a criticism, just a fact of life.

Yeah, the blog is good and he's a great writer. But on something as inexact as "business" it's really hard (for me anyways) to discern between advice that just sounds good, from advice that really is good. There seems to be a whole subculture of software/tech industry bloggers who make a living posting advice (many linked to on here everyday). If I were smart enough to pick out the talkers from the doers I'd probably be smart enough to not need to even be taking their advice. Given that, I tend to look at the guy's accomplishments to determine the amount of credibility I'll give to their advice.

There's no argument Joel's an authority on blogging about software/writing/etc., but I think it's less clear that he's such an expert on the software industry itself (as opposed to all the other guys out there with 20 years tech industry experience who spend more time working than blogging).