TSMRSRNE got a (targeted?) flyer via postal mail for the United MileagePlus Explorer Card. Printed therein was the link below. She applied August 19 and received the card today. She previously had a MP Explorer card, but cancelled it more than a year ago to avoid the annual fee. She "should" get 55,000 bonus miles right off the bat. I'll let you know if she does.

Bonus Miles:
50,000 when you spend $1,000 in the first three months
5,000 for adding an authorized user
10,000 every calendar year you spend $25,000

http://unitedexplorercard.com/65000miles

If this link has been posted elsewhere, a thousand pardons. I did search for it to no avail.