No jailbait, it will be treated as CP.
You've probably heard of Tineye but have you heard of Google's Tineye? Unlike Tineye, this shit actually works. I've see random images from *chans, searched it, and within minutes I had a download going or something to search for in torrent sites. Use it before making a thread. Doesn't work that well for camwhores but try anyways. Also search for all sizes after you're done with the pages.