Come on, dude, send the cards. If you don't, then either you will get useless/unwanted stuff as gifts, and guests will be annoyed at having to find out the hard way. 
The being said, we didn't send them out, because I think your gramma may be right. Look up Miss Manners' answer and you'll be OK (there's a book of MM for weddings). We advertised our website, IIRC, on which we linked to our registries (yes, it is OK to have more than one, we had three).
Anyhow, I voted to send them, but I may be wrong. Appeal to a higher power, see what Miss Manners has to say!
The being said, we didn't send them out, because I think your gramma may be right. Look up Miss Manners' answer and you'll be OK (there's a book of MM for weddings). We advertised our website, IIRC, on which we linked to our registries (yes, it is OK to have more than one, we had three).
Anyhow, I voted to send them, but I may be wrong. Appeal to a higher power, see what Miss Manners has to say!
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