I like Miraca Gross. I read that book before it was reworked, and I had hoped that the newer edition would be updated across the board. Unless Dottie read the older version, I guess not.

An oldie but a goodie is Children Above 180 IQ by Leta Hollingworth, if you can find it. When I read this and compared my own kids, I knew that I had some kids way outside the norm.

For overall usefulness, I like this one: http://www.bellaonline.com/articles/art8365.asp

I like the idea of having a different system to identify levels of giftedness, but I think Ruf's sample size was way too small and her distribution a bit random. Kids who knocked my socks off were assigned level 4, while at least one who didn't appear as gifted landed in level 5. Deborah Ruf is a lovely person though, and she genuinely cares about these kids.