The bellwether model performs best overall, requiring the least messages read while detecting more important threads at less cost of reading unimportant threads. The differences between 80 and 90 bellwethers reflect how parameters influence the tradeoff between these 3 measures. There was no significant benefit gained from viewing the EIN network in terms of a PageRank over equal authority, which aligns with previous work identifying PageRank's limitations in identifying experts (2) . Moreover, compared to randomly selecting 80 authors to follow, the performance is worse with our chosen parameters. Future work will examine incorporating bellwether authority into a textual analysis framework. 