yea if youre going to be hosting all your arbi pages on one domain, get some shitty general one with the word "information" in it like lerchmo suggested
It's just a generic word. You want to have a domain that is general enough so you can cover any niche. If you have electronic-site.com and you're trying to promote spas in New York, the visitor will be like wtf mate.
^^like CM said, keep it "basic" like, for instance, I have nerdonthe.net - its goofy enough that people notice it, but not general in any way, so anything I cover will be viewed.