Hilzoy with an excellent comparison of the two candidates' campaign web pages. It is important to note (as she does late in her post), that the web pages (good and bad) don't reflect the actual candidate positions. But the do reflect upon the candidates' professionalism, which reflect upon the candidates themselves, good & bad.
Obama's web site has, from day one I believe, been full of detail, and while McCain shouldn't be held to the standard of being as familiar with a web page as Obama, we can certainly fault those who advise and support him for not holding to that standard.
I suspect that the McCain campaign will start feeling some heat for the differences between the two, and start filling in more on their campaign site. At least, I hope so.