This was written on October 18:
I was used to finding the sympy webpage by googling "sympy". When I did that today, the http://code.google.com/p/sympy/ isn't shown in the results (instead the sympy's freshmeat page, or sympy's Debian page is shown). I tried yahoo and msn, and sympy webpage always shows as the first or second link in there (as it used to in google).
It's interesting and it reminds me how important it is to have several search engines and do not depend on only one, so that one can switch to a different one if the first one is apparently not working correctly.
Update (October 21): Google fixed the problem and sympy's webpage is the first link again.