Finally, it’s catch-up time. Here is the first installment.

• In the post about integration opportunities for Google Earth with other services, I mentioned a Google Calendar/Maps mashup, but said it never got past Beta. Andrew Turner from High Earth Orbit wrote in to say that his prototype, When2Where, made with MapQuest and Google Calendar, won a MapQuest competition a while back, but that he hasn’t had much time of late to polish it off and go “public” with it. In the the meantime, however, he’s working on adding a KML and RSS version of the MapQuest display, and is expecting to release it properly in January 2007.
• Valery Hronusov’s Superoverlay 1.3.1 beta adds timestamp support, a graphical preview, and a whole lot more. He uses it to demo this time-enabled region-based overlay of NASA’s MODIS fire imagery.
• Gerald L. Jackson at the Federal Office of Civil Aviation in Switzerland wants to know: is it possible “to specify a polygon’s upper and lower altitude? I create airspace segments in Switzerland, and visualize these in Google. […] The TMA segments have upper and lower mean sea level altitudes specified. The problem is Google can not lift these polygons off the ground showing a floating polygon. Can you point me to any guru on this matter? Many thanks!” Anyone here reading this NOT a guru?
• I never blogged this, so it’s good that Adam’s blog has post on it, with accompanying screencast: If you place placemarks very close to each other, the latest version of Google Earth will have them fan out when you click on them, so you can choose the one you want. As Adam Burt notes, this is excellent news for projects where many different items are georeferenced to the same place, as happens with blog posts.