When Google came out, I'm sure you'd say "Oh hey, it's Alta Vista!". I literally can't count the number of products and companies who attacked markets where others had largely failed (or at least not blown the doors off) and won big. YouTube, Google, Facebook, iPad, etc.

With a wretched name!

Except that Flock was incredibly bloated, and took up lots of screen real estate, when I tried it at least.