Found a nice, easy-to-read piece explaining mitochondrial DNA calculations.

http://www.thefamily.org/word/actbooks/content.php?chid=17&bkid=10
Quote
New evidences suggest that the human race is very young. The journal Science reported that the age of the human race is roughly 1,000 to 10,000 generations. Other information about mitochondrial DNA mutation rates gives an even younger age than 1,000 generations.
The results are quite favorable, and match up nicely with history.

Silent Sites Speak is another piece by Dr. David Plaisted. His site has several articles, generally good, but a few are already showing their age as research has continued. News of "junk DNA's" demise hasn't reached everyone, so it's good that they're still available I suppose. The Uniformity Problem is another good one, although off-topic for this thread I think.

Dark Matter + Dark Energy = Dark Truth

"We find that such evidence demonstrates that the ID argument is dependent upon setting a scientifically unreasonable burden of proof for the theory of evolution." - Judge Jones Kitzmiller case
http://www.talkreason.org/articles/Falsify.cfm

"To Compel A Man To Furnish Funds For The Propagation Of Ideas He Disbelieves And Abhors Is Sinful And Tyrannical." - Thomas Jefferson

"And can the liberties of a nation be thought secure when we have removed their only firm basis, a conviction in the minds of the people that these liberties are the gift of God? That they are not to be violated but with his wrath?" - Thomas Jefferson