Wade Roush at Xconomy has a fun insight into how we've passed peak Apple, peak Google, and peak Facebook:
...Apple will never again come out with a product as transformative as the iPhone. Google will never build anything more useful than its existing search engine, and it will never discover another business model as lucrative as search-based advertising. And Facebook may keep growing until every person on Earth with a computing device is a member, but it won’t ever be anything more than a place we share photos and links.
....You don’t reach this level of success by coming up with just a single earthshaking innovation—it usually takes two or more. Let’s spell it out. Google’s two fundamental innovations—now long behind it—were 1) if you look at the Web as a network of trust, defined mainly by links, you can use math to surface the best content, and 2) if you put related ads next to that content, people will click on them.
Who's next with the big thing in technology?