This site
http://www.sociologypapers.com/categories/Thomas_More.html
offers a listing of short papers about some of the sociological themes in More's Utopia.
This site
http://www.luminarium.org/renlit/morebib.htm
offers "The Works of Thomas More" including e-texts of Utopia, and More's History of King Richard the Third.
This site
http://www.beyondbooks.com/leu11/2a_link.asp
offers a listing of links to various sites which discuss aspects of More's private life and the impact of Utopia on later British and American literature.
This site
http://www.luminarium.org/renlit/moremore.htm
is of great use to anyone looking for more biographical information on More. There are links to over ten biographical essays and excerpts. Additionally, there is a bibliography including some of the most noteworthy books written about Sir Thomas More.
This website
http://www.d-holliday.com/tmore/
is for the devoted fan of Sir Thomas More. The Thomas More Society sponsors events in various areas (both in the US and international). The web site has many links to other pages about Sir More.