I do not have much time for posting at the moment, though I regularly update the list of events for the 2012 bicentenary. Here are a few interesting items on Edward Lear and nonsense in general:
“Jumblies and Jabberwockies. The Nonsense Verse of Edward Lear and Lewis Carroll, ” a chapter from Morag Styles’s From the Garden to the Street: Three Hundred Years of Poetry for Children. London: Cassell, 1998. Available from Google Books.
Wong, Mou-lan. “Trauma, Travel, and Regeneration: Picturesque and Nonsense in Edward Lear” (pdf). The 19th Annual English and American Literature Association Conference: Trauma and Literature. 12 November 2011.
“National and Cultural Peculiarities of English Hunor.” In a collection of essays in Russian. 2011.
Let me also suggest that you take a look at these two online exhibitions at Houghton Library: