seomoz.org 评比的web2.0排行榜，都来源国外，对于关注web2.0的朋友，可以通过这个评比了解国外web2.0的发展趋势：
Blog Guides
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technorati.com
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www.bloglines.com
3 . 
findory.com
Bookmarking
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ma.gnolia.com
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www.furl.net
3 . 
clipmarks.com
Books
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www.lulu.com
2 . 
www.biblio.com
Business
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www.squidoo.com
3 . 
shopify.com
City Guides and Reviews
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www.yelp.com
3 . 
local.yahoo.com
Classifieds and Directories
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craigslist.org
2 . 
www.oodle.com
3 . 
www.vflyer.com/main/Guest.jsp
Collaborative Writing and Word Processing
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docs.google.com
3 . 
www.thinkfree.com/common/main.tfo
Communication
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wwwl.meebo.com/index-en.html
Content Aggregation and Management
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2 . 
3 . 
Digital Storage and Remote Access
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2 . 
3 . 
Events
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2 . 
3 . 
Feed Management
1 . 
2 . 
3 . 
Fun Stuff
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2 . 
3 . 
Games
1 . 
2 . 
3 . 
grant.robinson.name/projects/guess-the-google
Health
1 . 
2 . 
3 . 
Hosted Wikis
1 . 
2 . 
3 . 
Lists and Polls
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2 . 
3 . 
Mapping
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2 . 
3 . 
Marketing
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2 . 
3 . 
Mashups
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2 . 
3 . 
Mobile Technology
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2 . 
plusmo.com/homepage/home.shtml
3 . 
Music
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2 . 
3 . 
Online Desktop
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2 . 
3 . 
Organization
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3 . 
Philanthropy
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2 . 
www.donorschoose.org/homepage/main.html
3 . 
Photos and Digital Images
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3 . 
Podcast Services
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2 . 
3 . 
Professional Networking
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2 . 
3 . 
Questions and Advice
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2 . 
3 . 
Real Estate
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2 . 
3 . 
Retail
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2 . 
3 . 
Search
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2 . 
3 . 
Social Networking
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2 . 
3 . 
Social News
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3 . 
Social Tagging
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3 . 
Start Pages
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3 . 
Travel
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2 . 
3 . 
Video
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2 . 
3 . 
Visual Arts
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Web Development and Design
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Widgets
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