Some sites / projects worth of sharing:
Hacker News - Business, startup, developer and technolgy news.
The Economist - Economy in depth, with proper analysis.
New Scientist - Excellent science magazine.
TED - Ideas worth spreading.
Electronic Frontier Finland - personal privacy, freedom of speech and user rights in copyright law.
Sytyke Ry - Much information about project co-ordination, system design, integration projects, etc.
Other handy tools:
7-Zip - Free ultimate compression.
Ubuntu - Very nice free operating system.
LibreOffice - Ultimate free office software package.
Google - Gmail, Maps, Docs, Sites, Analytics, Adwords, Plus, etc.
KeePass - Ultimate secure password application.
TrashMail - Disposable email addresses with optional challenge response.
Python - Excellent too for data manipulation, scripting, gluing components together.
SQLite - Locally store data in fast and efficient SQL database.
PostgreSQL - The best open source database, used for more demanding projects.
Duplicati - Backup your stuff to cloud securely.