Here is my idea..
my site (www.mywebsite.com) holds the main db, you can download the sql db and put it on (www.yoursite.com). But now you want to update the db with new info, but I want to get the new info on mysite too.
Could I use a form that POST's the info to like (mywebsite.com/update_sql.php?name=Joe Blow&phone=555-5555) and it can update my db and then send out a POST back to yoursite.com with the same query so now you have the new info.
Will this work? Is there a better way to do it, other software maybe? Security issues?