Further to last a couple of requests please.
The new LHR T5 spur road is not open unless you are a pass holder. Please don’t use it as a place to park up and view (as some people did today!) You’ll find yourself being moved on very quickly and asked what you were doing there in the first place. When it becomes operational it is likely Motorway regs will still apply there as well. £30 fixed penalty if you stop there without good reason.
Secondly, If you’re going to view from the 08 end at LGW please park well away from the emergency access gates.
Park in proper places and nobody has a problem. Would rather regular visitors who will notice things out of the ordinary.

As always some very good advice there. Sounds like you could be airport security/police.
Either way not important and back to the topic in hand.

I havent got any links to any Heathrow related spotting pages, but one thing i would point out if visiting Heathrow, is to bare in mind what runway they are using for arriving aircraft (only applicable when westerly operations).
Basically Heathrow runs on a weekly timetable. For example aircraft landing before 1500 will land on, say 27L and then from 1500 till last arrival they will use 27R and vica versa. The rota changes each week on a Sunday. I do have a timetable. If you send me a PM i can email you the PDF document with the information on it.

Adam