Figure 2From: Link creation and information spreading over social and communication ties in an interest-based online social networkDistributions of the measures of activity of aNobii users. In-degree k in and out-degree k out in the social network, number of group memberships n g , number of books in library and wishlist ( n b and n w ), number of reviews n r and books rated with stars n s , number of distinct tags n t and total number of tag annotations n a .Back to article page