Im assuming the same here too actually, that if they dont state any such intellectual property rights on their page then its safe to query their website with our app created queries.

Since this is a grey area , hence the thread.
My intention of raising a thread was to be sure we know what we are doing when creating such apps, was hoping to get some more concrete information actually, maybe there are people around who may have created apps like ive described and/or have done their homework for this to share it here with us.
examples would definetely help.