[m2e-users] Can't get eclipse to look at update site

[Benson Margulies <bimargulies@xxxxxxxxx>]

http://download.eclipse.org/technology/m2e/releases/

If I paste the above into the 'Work With' box (looking for 1.1), it
tells me that it is a duplicate.

If I click on available sites, it's not there.

If I add it to available sites, it lets me add it, but immediately it
disappears when I dismiss the available sites box.