Go to every site to gather all you can regarding your own artist background in the Biography sites. Look at the artist's works in the Galleries, and understand the defintion of Impressionism/Post-Impresionism. Keep good notes as they will be used for your Critique of the artist. There are two artist in this site and each one has its own bibliographies, galleries, and definitions.
BIOGRAPHIES OF EDOUARD MANET http://www.leninimports.com/edouard_manet.html#partone
http://www.guggenheimcollection.org/site/artist_bio_96.html
http://www.normandy-tapestry.com/france_general_info/french_art_posters/Manet_Edouard.htm
http://www.impressionniste.net/manet_edouard.htm
GALLERIES OF EDOUARD MANET http://artcyclopedia.com/artists/manet_edouard.html
http://www.artchive.com/artchive/M/manet.html
http://www.nga.gov/collection/gallery/gg90/gg90-main1.html
DEFINITIONS OF IMPRESSIONISM/POST-IMPRESSIONISM http://www.ibiblio.org/wm/paint/glo/impressionism/
http://www.artcyclopedia.com/history/post-impressionism.html
BIOBRAPHIES OF HENRI DE TOULOUSE-LATREC http://www.artelino.com/articles/toulouse_lautrec.asp
http://www.artchive.com/artchive/T/toulouse-lautrec.html
http://www.toulouselautrec.free.fr/biographie_longue_en.htm
http://www.renoirinc.com/biography/artists/lautrec.htm
GALLERIES OF HENRI DE TOULOUSE-LATREC http://www.artcyclopedia.com/artists/toulouse-lautrec_henri_de.html
http://www.mcs.csuhayward.edu/~malek/Toulouse.html
http://www.nga.gov/cgi-bin/psearch?Request=S&Name=lautrec&Title=&imageset=1
http://www.toulouselautrec.free.fr/peintures_en.htm