Best Search Engines of 2013

1 Google - The world's most popular search engine.

900,000,000 - Estimated Unique Monthly Visitors | 1 - Compete Rank | 1 - Quantcast Rank | 1 - Alexa Rank.Most Popular Search Engines | Updated 8/8/2013 | 

2 | Bing Search: Microsoft's entry into the burgeoning search engine market. Better late than never.
17 -Rank | 165,000,000 - Estimated Unique Monthly Visitors | 13 - Compete Rank | 16 - Quantcast Rank | 22 - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 

3 | Yahoo! Search: The 2nd largest search engine on the web (as defined by a September 2007 Nielsen Netratings report.
 160,000,000 - Estimated Unique Monthly Visitors | *8* - Compete Rank | *28* - Quantcast Rank | NA - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 

4 | ask
125,000,000 - Estimated Unique Monthly Visitors | 11 - Compete Rank | 14 - Quantcast Rank | 52 - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 | eBizMBA

5 | Aol Search
 33,000,000 - Estimated Unique Monthly Visitors | *336* - Compete Rank | *240* - Quantcast Rank | NA - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 |

6 | MyWebSearch
19,000,000 - Estimated Unique Monthly Visitors | *65* - Compete Rank | 409 - Quantcast Rank | 225 - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 | 

7 | blekko
 9,000,000 - Estimated Unique Monthly Visitors | 499 - Compete Rank | 631 - Quantcast Rank | 715 - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 | 

8 | Lycos
| 4,300,000 - Estimated Unique Monthly Visitors | 837 - Compete Rank | 347 - Quantcast Rank | 2,097 - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 

9 | Dogpile
 2,900,000 - Estimated Unique Monthly Visitors | 700 - Compete Rank | 876 - Quantcast Rank | 3,545 - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 |

10 | WebCrawler
2,700,000 - Estimated Unique Monthly Visitors | 128 - Compete Rank | 1,281 - Quantcast Rank | 4,507 - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 | 

11 | Info
2,600,000 - Estimated Unique Monthly Visitors | 371 - Compete Rank | 286 - Quantcast Rank | 5,283 - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013

12 | Infospace
2,000,000 - Estimated Unique Monthly Visitors | 469 - Compete Rank | *600* - Quantcast Rank | 2,786 - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 

13 | Search
 1,450,000 - Estimated Unique Monthly Visitors | 2,718 - Compete Rank | 2,203 - Quantcast Rank | 5,901 - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 

14 | Excite: Now an Internet portal, was once one of the most recognized brands on the Internet. One of the famous 90's dotcoms.
1,150,000 - Estimated Unique Monthly Visitors | 3,492 - Compete Rank | 3,618 - Quantcast Rank | 4,232 - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 

15 | GoodSearch
1,000,000 - Estimated Unique Monthly Visitors | 4,434 - Compete Rank | 4,308 - Quantcast Rank | 6,319 - Alexa Rank.
Most Popular Search Engines | Updated 8/8/2013 

Alexa Internet: A subsidiary of Amazon known more for providing website traffic information. Search was provided by Google, then Live Search, now in-house applicaitons run their own search.

AltaVista: Launched in 1995, built by researchers at Digital Equipment Corporation's Western Research Laboratory. From 1996 powered Yahoo! Search, since 2003 - Yahoo technology powers AltaVista.