In this age of omniconnectedness, words like 'network,' 'community' and even 'friends' no longer mean what they used to. Networks don't exist on LinkedIn. A community is not something that happens on a blog or on Twitter. And a friend is more than someone whose online status you check.

Simon Sinek

I hired a guy named David Sze to do consumer investing at Greylock. And he went on to invest in Facebook and LinkedIn. So I guess I did something right.

Aneel Bhusri

Just displaying your resume online, which LinkedIn lets you do, isn't enough.

Caroline Ghosn

In building a social network, the standards and mores of a community are its lifeblood; one does not lightly 'experiment' with these, and LinkedIn is exactly right to defend them.

Caterina Fake

I get my share of 'cold' requests via LinkedIn from people who are launching non-profit or for-profit ventures and who request a meeting to get my input or help. I wish I could say yes to all of them, but given limited bandwidth, I say yes to the subset who've written a compelling description of their work and who are underrepresented.

Charles Best

Facebook is the social graph with the organizing principle around your friends and your social life. LinkedIn is the professional graph, organized around you, your job, your industry, your title and your function. At Chegg, we are building a student graph centered around you, as a student.

Dan Rosensweig

You may have a small network, but growing that network has become easier with the use of social tools. LinkedIn, Conspire, even Facebook and Twitter allow you to grab branches that may have previously seemed out of reach.

David Cohen

LinkedIn is the Netscape of its era.

Frank Quattrone

I've been lucky enough to be involved in a number of great startups, including eBay and Wikia as an entrepreneur and LinkedIn and Paypal as an investor.

Gil Penchina

This is now the way our culture prioritises. Look up 'Steppenwolf,' and you'll get the band before the novel. Look up Jesus Christ, and you'll get the musical. Look up Princess Link-a-din and you'll get LinkedIn, the business-oriented social network.

Howard Jacobson

I am a huge consumer of social networks, and I utilize Twitter, Facebook, and LinkedIn. I'm interested and am learning more about Tumblr and other visually dominant sites.

James G. Stavridis

Even if you don't state your ethnic background anywhere on LinkedIn or whether you are married with children, a scan of your photos and other people's photos featuring you will make it far easier to deduce.

Jan Chipchase

LinkedIn is increasingly becoming a very strong place for companies to develop their talent plans, their recruitment plans, and so there are ways in which we can track some of the momentum there.

Jeff Weiner

Facebook is massive in scale and scope. Twitter is a public communication forum, but if I'm following you, you're not necessarily following me. LinkedIn is, simply, a professional network.

Jeff Weiner

I hate when people send me LinkedIn requests.

Jess Phillips

LinkedIn's got a little progress bar. It wants you to do things like sign up 10 of your friends. It does that near the end. At the beginning it's like, 'You put in your name. 20 percent progress! How about some other information?' People want to fill in that progress bar. They like to complete a task. They like to check a box.

Jesse Schell

Building out a professional profile on LinkedIn certainly makes sense, and bolstering that CV with intelligent pieces of writing is also a great idea. But if you're going to take the time to create content, you should also take the time to create a home for that content that is yours and yours alone.

John Battelle

If you're going to build something, don't build on land someone else already owns. You want your own land, your own domain, your own sovereignty. Trouble is, so much of the choice land - the land where all the people are - is already owned by someone else: By Google, Facebook, Twitter, LinkedIn, Yahoo, and Apple (in apps, anyway).

John Battelle

One of the most delightful parts of being a writer is connecting with people via social media. I devote ten minutes out of every writing hour to Twitter, Facebook, Goodreads, LinkedIn, Pinterest, and other sites. I don't use assistants for that. It's me and all of my friends, fans, readers, and colleagues on the crazyboat.

Jonathan Maberry

Asana and complementary services are bringing the evolved team brain to the entire world. In great companies like Twitter, Uber, Airbnb, Foursquare, and LinkedIn, people already add information to and extract insight from these systems much the same way our hands and brain exchange signals.

Justin Rosenstein

I can go into LinkedIn and search for network engineers and come up with a list of great spear-phishing targets because they usually have administrator rights over the network. Then I go onto Twitter or Facebook and trick them into doing something, and I have privileged access.

Kevin Mitnick