Atenção: Dispositivos Apple iOS são afetados pelo PRISM. A utilização dos mesmos pode comprometer sua privacidade. É altamente recomendada a substituição do seu dispositivo por outro compatível com Android rodando o Replicant.

Authentication
Proprietário
Authy
Google Authenticator
Proprietário
Apple Mail
Gmail
Microsoft Outlook
Yahoo! Mail
Yandex.Mail
Enterprise Suite
Notas
The enterprise suite category is for solutions for organizations that cover more than 10 categories in an integrated fashion (ex.: logins work throughout all apps, etc.)
Proprietário
G Suite
Office 365
Zoho Office Suite
Armazenamento de Arquivos e Sincronia
Notas

Why not MEGA? While MEGA is free as in beer, the software is proprietary code.

Why not SpiderOak? SpiderOak is proprietary software.

Why not Tarsnap? Tarsnap is partially proprietary and hosts your data on Amazon Web Services.

Proprietário
Dropbox
Google Drive
iCloud
Microsoft OneDrive
Mesh Networks
Notas

A mesh network is a decentralized peer-to-peer network, with user-controlled physical links that are usually wireless.

“Mesh networking (topology) is a type of networking where each node must not only capture and disseminate its own data, but also serve as a relay for other nodes, that is, it must collaborate to propagate the data in the network.“

Wikipedia

Proprietário
Proprietário
Google News
Sistemas Operacionais (Móveis)
Notas

iOS and WP are proprietary operating systems whose source code are not available for auditing by third parties. You should entrust neither your communications nor your data to a black box device.

Proprietário
BlackBerry 10
iOS
Produtividade
Proprietário
Doodle
Evernote
Google Docs
Microsoft Outlook
Zoho Docs
Navegadores
Notas

Use a combination of Tor Browser and a free web browser of your choice to the surf the web.

Try to use Tor Browser as often as possible. Browsing is slower with Tor, but far more secure.

Note: Mozilla Firefox is technically not completely free software, as Mozilla recommends non-free add-ons on their website.

Proprietário
Google Chrome
Opera
Safari
Yandex.Browser
Pesquisa web
Notas

DuckDuckGo is a software-as-a-service (SaaS) hosted around the world that provides you with anonymous search results from these sources. DDG open source components are available here.

There is also a DuckDuckGo hidden service at 3g2upl4pq6kufc4m.onion for Tor users.

MetaGer is a SaaS by the German non-profit SUMA e.V. that provides you with anonymous meta search results.

Startpage is a SaaS hosted in the USA and the Netherlands that provides you with anonymous Google search and image results through a free proxy.

Proprietário
Google Search
Microsoft Bing
Yahoo Search
Yandex Search