Bobby is a Minecraft mod which allows for render distances greater than the server's view-distance setting.
It accomplishes this goal by recording and storing (in
.minecraft/.bobby) all chunks sent by the server which it
then can load and display at a later point when the chunk is outside the server's view-distance.
Optionally, it can also use an existing single player world to load in chunks which the server has never sent before. To make use of this feature, simply rename the world folder (not the name of the world! the name of its folder!) to "bobby-fallback".