All
http://www.skwirk.com/p-c_s-56_u-422_t-1105_c-4274/wa/sose-history/renaissance-and-reformation/renaissance-in-europe/great-cities-venice-genoa-and-florence
http://www.ducksters.com/history/renaissance/italian_city-states.php
Genoa
https://en.wikipedia.org/wiki/Republic_of_Genoa
http://schools.cbe.ab.ca/b690/Curriculum/socialstudies/ourworldview-8/ss_ourwvs8/Attachments/a_student_text/SS8SB042.pdf
http://www.pages.pomona.edu/~glg04747/genoa/genoa3.htm
Florence
http://schools.cbe.ab.ca/b690/Curriculum/socialstudies/ourworldview-8/ss_ourwvs8/Attachments/a_student_text/SS8SB034.pdf
https://en.wikipedia.org/wiki/Florence#Middle_Ages_and_Renaissance
https://www.khanacademy.org/humanities/renaissance-reformation/early-renaissance1/beginners-renaissance-florence/a/florence-in-the-early-renaissance
Venice
https://www.khanacademy.org/humanities/renaissance-reformation/renaissance-venice
https://en.wikipedia.org/wiki/Republic_of_Venice
http://vlib.iue.it/carrie/texts/carrie_books/gilbert/03.html
http://schools.cbe.ab.ca/b690/Curriculum/socialstudies/ourworldview-8/ss_ourwvs8/Attachments/a_student_text/SS8SB037.pdf