Does anyone know a good free date reminder service?

One that can send to emails and you can set something to send in advance.

http://www.freminder.com/

Something like this?

Or what about Google Calendar?

http://www.freminder.com/

Something like this?

Yeah, sort of. That works. But if there is one where you can also send cards and you don't have to pay for that would be great.

I couldn't find one.

Yeah. Google Calender is great. You can get reminders sent to you, and have a lite version in gmail itself.

What about one that sends email reminders to other people's emails?

You probably can, I don't know. I haven't checked for myself.