If anyone is interested, and has spare time to stare at photos of empty ocean, there's a crowd sourcing effort to trawl through satellite images of one of the search areas. Yesterday they were showing a set from March 9, today they are showing images from March 12.

It can be found at https://www.digitalglobe.com/ top of the page.

At least now if people are complaining "I wish I could do something" you can send them there.