Having too many hits or links when you look up a term on a search engine. Alternately, having so much on-line information that you don't know what to do or how to proceed. Origin: "web" (world wide web) + "nebulous."
I was going to do a research paper on the Iraq War, but when I googled it, it was way too webulous to handle.
A new parent seeking professional advice online may find it so webulous that they give up.