See aggregated friends ratings / activities / collections
It would be great if /network section would not (only) be a list of people in your network, but an aggregation of activities of everyone in your network.
To be able to see what my friends have been up to, find what they have rated highly (find recommendations). Going to each friends /history/ page is not nearly as fun for that ;)
Alternatively perhaps in search filter in addition to "RATED" filter there can be "FRIENDS RATED" filter to achieve a similar result.