i believe the filesharing economy is a major low hanging fruit for bitcoin to increase commercial usage.  seedboxes, torrent sites donations/vip purchase, vpns, hosting sites, etc.  it increases anonymity of a services users eliminating the money trail, which now is a major chink in the armor.

torrentfreak just published an article about vpns and one of the items is about bitcoin use:

https://torrentfreak.com/how-to-make-vpns-even-more-secure-120419/