Some global view of the graph that helps with: detecting candiates for coring/platforming (Gawer & Cusumano 2008); finding out the neighbors of a particular package (as candidates for collaboration on interoperability); understanding any high-level structure (clusters associated with subcommunites, for example).
Consider incorporating some external knowledge about packages' groupings: e.g. CRAN's "task views" are hand-curated groupings by type of task the package helps with. (Henry, Fekete, McGuffin 2007 say this is an important part of network analysis)
Some global view of the graph that helps with: detecting candiates for coring/platforming (Gawer & Cusumano 2008); finding out the neighbors of a particular package (as candidates for collaboration on interoperability); understanding any high-level structure (clusters associated with subcommunites, for example).
Consider incorporating some external knowledge about packages' groupings: e.g. CRAN's "task views" are hand-curated groupings by type of task the package helps with. (Henry, Fekete, McGuffin 2007 say this is an important part of network analysis)