Thanks for the help Coyote those are excellent sources, i am reading right now. Just curious, do you accept long or young ages? Those sites you posted looks like their young ages.
There is virtually unanimous agreement that the earth is ca. 4.5 billion years old.
The only folks who dispute this do so for religious, not scientific, reasons.
If I remember, those links also support the ancient age of the earth.
Let me know if you have questions on radiocarbon dating. I am not very knowledgeable on the other radiometric methods, but others here are.
Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.