Search Engine Review

Search engines are a very useful tool, but not all are created equal. I will review the following search engines for this post: WolframAlpha, Bing, Duckduckgo, Dogpile, Yahoo!, and Yandex.
1. WolframAlpha
WolframAlpha is a search engine for educational use. I took the tour on it's website and found that is is a "computational knowledge engine" that "computes exact answers." Being a future math teacher, I find it useful that it can compute answers to mathematical problems. Also, WolframAlpha does not have ads, which makes it even more beneficial for educational use.
2. Bing
One of the differentiating factors of Bing is that you can earn rewards for your searches. Rewards are earned in a range of amounts for different searches, the rewards build up over time, and then they can be redeemed for prizes such as coupons, sweepstakes entries, and gift cards. My favorite is the $5 Amazon gift card for 475 reward credits. Of course, Bing must have ads in order to provide these rewards.
3. Duckduckgo
Duckduckgo has the slogan "Search anonymously. Find instantly.". This search engine does not track your searches from topic to topic. This is beneficial because you will not be bombarded with ads of links in the margins based on previous searches.
4. Dogpile
Dogpile is a search engine that produces results by searching within other search engines. Dogpile uses Google, Yahoo!, and Yandex to find it's results. By using this search engine, you can search within three different search engines at the same time.
5. Yahoo!
Yahoo! is a search engine like Google. It provides users with email ability, streaming news, and it even has links on its homepage to the top ten trending searches. Yahoo! is also powered by ads so deciphering the search results can be difficult sometimes.
6. Yandex
Yandex is a search engine run by a Russian company. It is one of the top five search engines in the world and number one in Russia. It's homepage reminded me of Google because it has its own email and images, but the best feature I found was the translate link. The translate link can translate to and from in 36 languages. This would definitely be helpful in education.