Blogs and Wiki

Blogs 

What is Blog? (from Wikipedia)
This wikipedia site provides a full range of general information about blogs including definitions, history, and links to specific resources.

Worldpress.com
Free blogs managed by the developers of the WordPress software. Includes custom design templates, integrated statistics, automatic spam protection and other useful functions.

Blogger
A free blog service where you can create your own blog.

Blogspot

Easy to use blog.

Twitter
A mini-blog and a free social messaging utility for staying connected in real-time.

 

Wiki 

Wikipedia

What is Wiki?

Wikispaces

Create simple webpages that groups, friends, and families can edit together.

Wetpaint
Free wiki websites where everyone gets a brush.

Wiki.com
A wiki search motor.

LyricWiki
Source where anyone can go to get reliable lyrics for any song from any artist without being hammered by invasive ads.

ZineWiki
Open-source encyclopedia devoted to zines and independent media. It covers the history, production, distribution and culture of the small press.

IMSLP
A Wiki virtual library containing all public domain musical scores, as well as scores from composers who are willing to share their music with the world without charge.

AboutUs.org
New web resource that builds on the knowledge of every visitor.

Wikibooks
Free collection of open-content textbooks that anyone can edit.

Wikinews
Free news source that you can write.

Wikiquote
Free online compendium of quotations from notable people and creative works in every language.

Palaeos
Multi-authored encyclopedia on the history of life on Earth.

Wikiversity
Multidimensional social organization dedicated to learning, teaching, research and service.

Wiktionary
Collaborative project to produce a free, multilingual dictionary with definitions, etymologies, pronunciations, sample quotations, synonyms, antonyms and translations.