Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.
Firefox Sync - Bring your Firefox bookmarks, tabs, or passwords wherever you go with Firefox Sync. Share between computers and mobile devices. Get Firefox now!
1Password - 1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
bitwarden - Bitwarden is a free and open source password management solution for individuals, teams, and business organizations.
Diigo - Diigo is a powerful research tool and a knowledge-sharing community