I’ve heard and experienced the effect of personalized search. So, for instance, if I google a term like online homeschool while I’m inside my igoogle account, I find that this site: http://www.homeschoolonline.org comes up first. But, when I logout of my own igoogle account, I find that this site is third. Here’s my questions. - Is Google also logging my IP address and providing some level of customization based on preferences exhibited by that IP address? - I've also heard that google customizes for IE and Firefox based on some algorithmic-based differences of interest between these populations. True? What do you think?