Thank you for the interest in the NodeXL project!
NodeXL has data provider "spigots" to deliver a variety of data sets.
A Facebook ego-network data provider is available through a 3rd party tool from Dr. Bernie Hogan at the Oxford Internet Institute. The tool generates a network data file in GraphML format that can be imported into NodeXL.
The Facebook data provider is described here:
This tool does not offer access to networks in Facebook pages, just the ego-network around any logged-in user.
We are exploring a Facebook page network extractor that may be available in the coming months.
NodeXL does have other spigots for Twitter, YouTube, flickr, WWW, email and other network data formats like UCINet DL files, GraphML, matrices, edge lists, and Pajek files.