Dear PF, At least 30 years ago I first noticed a characteristic of spider web location which went against the popular and scientifically supported (Sir Richard Dawkins) notion that spiders located their webs by trailing filaments in the breeze and forming the web where they stuck. It was clear from the number of webs I observed in odd locations that spiders, even quite small ones, were capable of attaching filaments to points so diverse that it could not have been done by trailing in the breeze. Firstly, because they were in-doors in still air and also separated by distances of 10's of feet. For example, between roof beams and corners of benches beneath, and of garage walls and the roof ridges of motor cars parked within. I have no biological education but have approached a few authorities for an explanation (Bristol University, England, UK, Natural History Museum, London, England, UK and a BBC Wildlife Expert). I have not received any reply. I have an idea about how the spiders do it but I would appreciate it if anybody knows how it is done to illuminate my ignorance.