Myspace let young people (and then everyone) connect online, share photos, and declare who's their friend.
Facebook let young people (and then everyone) chat with and follow their classmates, and eventually let everyone keep in touch (using that phrase loosely) after graduation.
Ello let's -- uh, let's say tech-savvy 20- and 30-somethings? -- do -- uh, let's say send messages? -- without seeing ads.
The mission statement is equally vague.
"Ello is a simple, beautiful, ad-free social network."