I've been seeing more crab spiders in the oak trees lately:
They build their webs so high it's hard to get a good, close shot of them; I usually wait until sunset when the light makes the webs glitter. Here's a close-up of the same spiderworks:
This second one was almost four stories over my head, so I had to zoom to the max before I could get even a fuzzy snap of it:
They must not be afraid of heights, I guess.