does anyone now where i can find anything about little o notation?

Answer 1

http://en.wikipedia.org/wiki/Big_O_notation
http://www.everything2.com/index.pl?node_id=1412748
http://en.citizendium.org/wiki/Little_o_notation

(a lot of redundancy; the first reference is the best of the three)

According to http://mathworld.wolfram.com/LandauSymbols.html

"Historically speaking, the symbol O(x) first appeared in the second volume of Bachmann's treatise on number theory (Bachmann 1894), and Landau obtained this notation in Bachmann's book (Landau 1909, p. 883; Derbyshire 2004, p. 238). However, the symbol o(x) did indeed originate with Landau (1909) in place of the earlier notation {x} (Narkiewicz 2000, p. XI)."

(See that link for the references cited in the quote.)