Here is a list of resources I highly recommend for building your Bardic repertoire and keeping tabs of virtual circles.
Calendar and Social Links:
Mistress Rohais' Bardic Calendar
Friday Night Bardic Facebook Group
SCA Bardic Arts (Unofficial) Facebook Group
Virtual Songbooks:
Tilted Windmill (Master Cerian Cantwr)
Ravenscroft Repository (Mistress Rohais)