Google Docs have added find and replace and it could be used by either from tool bar, edit menu or by simply pressing CTRL + F.
I usually use find and replace because I can't write nor spell properly. As Google Docs blog says, there will be many uses for this function and happy to see that Google DOcs getting more functionality. Follow the link to read more and to get links to some other articles regarding the same.
Official Google Docs Blog: Find (and replace) my favo(u)rite colo(u)r and much, much more
Wednesday, March 25, 2009