Effect of Man-made Sattelites on Earth

Hello,A random thought just jumped into my head, and I was wondering. What is the effect of a man-made sattelite on Earth's orbit? Now, surely, any object orbiting Earth would effect it just a slight bit, but these objects have been removed from the planet. So, even though they are now orbiting it, their mass is subtracted from the total of the planet (because their materials come from Earth).So, what is the effect, overall, that this has on the orbit of the Earth. If enough of the Earth were dug up and made into sattelites, would the effect be dramatic enough to really mess with the orbit?Probably all stuff I could Google, but I just figured I'd get some expert opinion from a source I can trust Thanks,
Jon

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