I'm moving from Europe to Canada, and considering [the high fees for wire transfers](https://money.stackexchange.com/q/27474/9083) (the default, instantaneous, cheap, online method I've always used so far), what is the most economical way to send a small amount of money to a friend, fully electronically (i.e. online)?  The aim is that the money goes from my bank account to the friends bank account, with minimal cost and effort on both sides.  The amount may be small (<10$).  It does not need to be fast.

The friend may be either in Canada or outside Canada.  For the USA, the question is answered [here](https://money.stackexchange.com/a/23836/9083) and [here](https://money.stackexchange.com/a/5371/9083).