Ask HN: Is Google's algorithm broke? or is it my account?

This is the second time in two days that google returned a google generated 404 error code based on a site link I tried to click. The first was yesterday searching fortune 500 list, the first 4 links returned the 404 error (all linked to money.cnn.com) those seem to be repaired now. The second was today searching "denver weather" the 5 day forecast links gave me the same error, as did subsequent non direct file linked (links to a sub / not a .html or file) pages. I'm wondering if they are having problems with there algorithm or if my account / computer is having problems. It appears that in both cases they were not directly linked to a file, google passed sub code in the url, it was a google generated error code, and both use google to search their site.

Any input?