What better way to celebrate than by downloading all of his books (via The University of Adelaide)?
You might also like to read ‘A Letter to Charles Dickens on his 200th Birthday‘ by Dickens biographer Claire Tomalin.
I’ve also loved pottering about lately on Dickens Journals Online which I was introduced to by Whispering Gums, who reviewed Margaret Mendelawitz’s selected essays (from the Household Words journals).
LiteraryMinded 
Thanks for the link Angela … the Claire Tomalin biography would be a good read I reckon. Then again, I should put effort into reading those of his – quite a few – that I still haven’t read.