How to turn on two-factor authentication on over 100 popular online services

Posted on 04 June 2015. TeleSign launched Turn It On, a new campaign featuring a guide to two-factor authentication and providing step-by-step instructions for turning on 2FA for over a 100 popular social networking, banking, cloud computing and other online services that offer the 2FA option. The guide currently includes instructions for the following services:

Backup and sync: Dropbox, Evernote, Google Drive, AeroFS, iCloud, Box, OneDrive, Revert, Tresorit, Yandex.Disk, Zetta.net.
Financial: Barclays, Bank of America, Discover, Chase, Fairwinds, HSBC, USAA, Wells Fargo, Ally Bank, Natwest UK, SEB.
Cloud computing: Clio, Amazon Web Services, Cloud 66, Google Cloud Platform, Microsoft Azure, Packet, Rackspace,
Communication: Basecamp, Campfire, Mailchimp, Salesforce, SendGrid, Office 365, Skype, Slack.
Cryptocurrencies: BitBay, Bitcoin-Central, BitGo, Bitstamp, Blockchain, Coinapult, Coinbase, Justcoin Exchange, LocalBitcoins, WeMineLTC.
Developer: Aha!, GitHub, Launchpad, Looker.
Domains: CloudFlare, Directnic, DNS Made Easy, Domeny.tv, Dyn, Dynadot, easyDNS, Gandi, GoDaddy, Hover, Internet.bs, InterNetworX, Metaname, Namecheap, Name.com.
Education: Clever.
Email: Gmail, Hushmail, Outlook, Pobox, Posteo, Yahoo, Zoho, FastMail.
Gaming: Blizzard, Enjin, Guild Wars 2, Origin, Runescape, Star Wars: The Old Republic, Steam, Trio Worlds, Square Enix.
Government: US Social Security Administration.
Health: HealthVault.
Hosting: Rackspace, Dreamhost, DigitalOcean.
Identity management: Bitium, MyDigipass.com, Okta, OneLogin.
Investing: E*Trade, Motif Investing, OptionsHouse, Interactive Brokers.
Payments: Buycraft, Google Wallet, PayPal, Skrill, Stripe, Venmo.
Remote access: Amazon AWS WOrkSpaces, LogMeIn, TeamViewer.
Shopping: Apple, eBay, Etsy.
Social Media: Facebook, Bitly, App.net, Buffer, Google Plus, Hootsuite, Tumblr, Twitter, VK, WordPress, LinkedIn. Full Article