My most far reaching post was my dinner game post. I was linked to by several bloggers, I never knew of before.
1) You can invite any four people, living or dead, from any period in history.
2) If you played before, use different guests,
Astor Piazzolla (tango composer)
Last year I invited to the party: Leon Trotsky, Keira Knightly, Carl Sagan and Pablo Picasso.