Easy? Yeah, probably when you know how. I should know better than to ask this as I probbly won't understand the answer.

Made a spreadsheet,
imported it into an email manager ( PhpList)
sent a newsletter to the list - successful
many on the list have only email - some have first and family name etc.

The big challenge.
Want to email the list and ask them to go to me nice liddle web form and put in their first and family names and instead of the info going just to an email (like I've done the past), I want it to go to that person's record in the database.
Can one's hand be held patiently or is this a job for an expert?
linus server, mysql etc