What are some good websites for practicing engineering drawing?

http://www.indiabix.com/technical-drawing/dimensioning-architectural-drawings/ http://books.google.com.lb/books?id=H9t_fdmbZAoC&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false http://books.google.com.lb/books?id=QbdMOM89qv0C&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false last but not least you need access rights ( its free registration required ) http://www.scribd.com/search?query=Architectural+Drawings Cheers : )