Some of the comments though are cringeworthy:

The one feature that SeatGuru has had, yet to appear on AeroLOPA
, is which version of a particular aircraft is being used for a specific route on a specific day -
- a key piece of information in making an informed advance seat selection.

Ahum......
Performing one's own piece of investigating journalisim about a potential flight
+ looking up aircraft deployment in the timetable,
seems to be quite an effort for some ......

Nobody seems to take in consideration that it is all a volunteer group effort with appreciated community input .....

So again: i am thank you and everyone else for this amazing free resource...
And to add: i too am clinging to an old Singapore Airlines & KLM timetable book because of the pretty amazing detailed seatmaps as a relic of a bygone age that still holds fascination