Using Too Many External Graphics

I have come to the realization that my small business blog uses way to many calls to external sites and I was able to speed up it's page load time to 3 seconds from 7 - 8 seconds.  I was also using Google's analytics but it was registering way too slow so it's gone too.  I see so many other people using similar graphics but it doesn't seem to have a major effect on their pages... So what am I doing wrong?  Any suggestions?