Hi!
As far as questions go, both sites have the same concept, that is you can ask and answer questions. The main difference between these two sites is that Yahoo! is a much larger network which also provides services such as email, music and online shopping. WikiAnswers however is similar to answerbag.com, in respect that it only deals with questions and questions only. Another difference in the sites is that to use Yahoo! Answers one must sign in, however the WikiAnswers website allows anyone to post and answer questions anonymously.
-Korjo
On Yahoo!Answers if you ask a Question then you will got different suggestion on that Question from different peoples and you to select best answer and you will get points.But on Wiki Answers,there can be only one answer to a question on Yahoo!Answers,people can improve it.
Yahoo answers questions
There is a big difference. Yahoo is a search Engine.Twitter is a social network.
In fact there is no main difference between them , just we have in interface
Wiki Is much better the community is nicer
yahho is a website explorer is a web broser
There are many differences but the main difference is that on Yahoo Answers,whenever a question has been put up,many users answer individually,but on Wiki Answers,whenever a question has been put,there can be only one complete answer to that question,and the users can improve it.Yahoo Answers has a points and levels system,more points you have,higher the level you will be in,however,here on Wiki Answers,contributions of a person are counted and then the user gets the badge according to his/her contributions.
yahoo search uses bing (that's right Microsoft bing) while alta vista uses the original yahoo search engine.
Yahoo! Mail has a better look and some better features than the regular Yahoo! classic e-mail.
Yahoo and Wiki Answers
http://en.wikipedia.org/wiki/Ibanez http://en.wikipedia.org/wiki/Ibanez_GIO
http://en.wikipedia.org/wiki/DDRAM http://en.wikipedia.org/wiki/SDRAM It explains everything.