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Dropping knowledge: question-and-answer sites

Online social search services Yahoo Answers, Answerbag, and Windows Live QnA connect you with a community of knowledge seekers and experts on all kinds of matters.

By Elsa Wenzel (September 1, 2006; updated November 29, 2006)
Reviews
Sometimes, the little questions in life are the hardest to figure out. Too embarrassed to ask why shampoo suds are white? Perhaps you're desperate to extinguish the stench of cigar from your car. Or maybe you have a precise question about, say, DNA testing, which no amount of Web surfing has answered.

Free, online social search services can put you in touch with experts, both learned ones and desk-chair wannabes, to satisfy your curiosity. Yahoo Answers, Windows Live QnA beta, and Answerbag are all free; just sign up and log in. These three services let you post and answer questions publicly to users to share and rate. Each system is designed to elevate trusted sources to positions of authority. Don't want to visit a Web page for updates? You can sign up for updates via e-mail or RSS.

Yahoo Answers has the most users, which is a mixed blessing. You may receive multiple replies to a Yahoo Answers query right off the bat, but you'll probably have to filter out fluffy chatter to extract nuggets of wisdom. Answerbag is cool because it lets you attach videos and images to illustrate posts better than words can. We wish the service had more users, but Answerbag's interface makes it the most fun time-waster. Perhaps in part because Windows Live QnA remained in closed beta testing for many months, we found that its users were the most enthusiastic about technical questions.

Within all of these services, some questions are blatant attempts by students to avoid an encyclopedia. Yahoo, Answerbag, and Microsoft try to block young children from their services, but the burden falls to each self-policing community of users. If you don't want to waste time wading through amateurs' deep thoughts, you can pay experts on BitWine beta to chat with you. The paid Google Answers, on the other hand, is shutting shop by the end of this year. AllExperts can hook you up with true experts at no cost, such as an accountant to entertain a basic tax question, but its pool of sources has diminished in recent years. Wondir is free and loaded with content, but we found it a bit heavy on medical cries for help.

Windows Live QnA offers extra social networking features. You can click a user's profile to see that person's Windows Live Spaces page and contacts. This can be handy, but not if you're posing an embarrassing question. We like that Yahoo and Answerbag let you remain anonymous so that you don't have to admit ignorance. But before you share any nefarious plans or suspicious-sounding musings, keep in mind that your account activity is fair game if law enforcement comes knocking at the vendors' doors.

  Answerbag Yahoo Answers Windows Live QnA beta
Subscribe to answers Via e-mail and RSS Via e-mail and RSS Via e-mail and RSS
Integration Paste badge onto Web site My Yahoo; Messenger; paste badge onto Web site Live.com; Windows Live Contacts, Messenger, Spaces
Attach images to questions and answers Yes No No
Attach video to questions and answers Yes, from YouTube or MySpace No No
Rate quality of answers Yes Yes Yes
Time to answer Unlimited Week 4 days
Organize by subject Drop-down menus Drop-down menus Tags
Merit system Letter grade Points Points for participation; stars for quality of answers
Choose to remain anonymous Yes Yes No, links to your Windows Live Spaces page and contacts
Attach your image to profile Yes, or avatar Yes, or Yahoo avatar Yes
Ads Text No No
Age policies Users must vow that they're older than 13. Answerbag can remove posts that violate its rules. Encourages parents to create Yahoo Family account to include children under 13. Yahoo can remove posts that violate its rules. Users can tag posts as "mature" to allow other users to filter out sexual or violent content. Microsoft can remove posts that violate its rules.
Read the CNET editor's take
Answerbag
Answerbag
Video and image attachments provide Answerbag with the potential to offer more show-and-tell replies than Yahoo Answers and Windows Live QnA, but only if users exercise those features wisely.
7.0 out of 10
CNET editor's take
Yahoo Answers
Yahoo Answers
The free Yahoo Answers question-and-answer service lets you share know-how online with other users--or learn from them--about the arts, cars, politics, travel, and everything in between.
CNET editor's take
Windows Live QnA beta
Windows Live QnA beta
This reputation-based, peer-to-peer question-and-answer service lets you seek and offer all kinds of knowledge online while integrating with other Windows Live Contacts, Messenger, and Spaces.
CNET editor's take
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