do you feel Google search result quality has gone down?
nitrogen: Originally, a Google search for some Linux-related terminology would lead to an LKML post or white paper where that technology was explained.  Now, most of my searches lead to dozens of user-oriented self-help forums where the questions are never answered.  Finding information on actual development now requires knowing which sites/lists to search (like LKML, alsa-devel, kernel subsystem maintainer sites, etc.).