On a forum, if I'm looking for opinions on a spray wax, for example, I search using the advanced option, with the thread titles only option selected. I do the same type of search if on a forum, for any opinions on a particular brand's product. If I am simply using a browser and not searching within a forum, which I rarely do any longer, I would likely visit the company's homepage first before searching for opinions. One thing to note for qd's, if the forum does not allow a 2 letter or 3 letter search, you can add an * before and after the text that would usually be too short. Spray, dressing, qd, interior, tire, manufacturer's name, sealant, paste, liquid.... are all "keywords" that I might use. Hoping that helps...