Phone cards

Phone cards

Hi, all - does anyone have any phone card recommendations for long-distance calls from Canada to the US? Many of the sites I've turned up via Google just look so unreliable I'd be afraid to risk them. so I'm looking for tried-and-true, reliable service providers, as opposed to the too good to be true cheap prices...
Blue Morning Glory

Blue Morning Glory

Yams – the breakfast of champions

Yams – the breakfast of champions

Bedspread

Bedspread

Calendula

Calendula

I’m so Excited!

I’m so Excited!

Holiday Room Cheer

Holiday Room Cheer