WebCrawler (English Wikipedia)

Sullivan, Danny (1997-06-16). "The Search Engine Update, June 17, 1997, Number 7". Search Engine Watch. Archived from the original on 2016-04-14. Retrieved 2019-02-02.

seattletimes.com (Global: 449^th place; English: 222^nd place)

"Short History of Early Search Engines". The History of SEO. Archived from the original on 2019-01-21. Retrieved 2019-02-03.

Brid-Aine Parnell (December 18, 2012). "Search engines we have known ... before Google crushed them". The Register. Retrieved November 17, 2016.

"WebCrawler's History". www.thinkpink.com. Archived from the original on 2005-11-28. Retrieved 2019-01-09.

"Short History of Early Search Engines". The History of SEO. Archived from the original on 2019-01-21. Retrieved 2019-02-03.
"WebCrawler's History". www.thinkpink.com. Archived from the original on 2005-11-28. Retrieved 2019-01-09.
Lammle, Rob (2012-03-16). "'90s Tech Icons: Where Are They Now?". Mashable. Archived from the original on 2012-03-17. Retrieved 2019-02-18.
"WebCrawler Select: Review Categories". WebCrawler. 1996-10-24. Archived from the original on 1996-10-24. Retrieved 2019-02-03.
Sullivan, Danny (1997-06-16). "The Search Engine Update, June 17, 1997, Number 7". Search Engine Watch. Archived from the original on 2016-04-14. Retrieved 2019-02-02.
R. Notess, Greg (2002). "On the Net: Dead Search Engines". InfoToday. Archived from the original on 2002-05-25. Retrieved 2019-01-16.
"Leading Leaders". A9 Management web page. Archived from the original on November 14, 2016. Retrieved November 15, 2016.
"WebCrawler Search". WebCrawler. 2018-05-31. Archived from the original on 2018-05-31. Retrieved 2019-02-02.
"WebCrawler Search". WebCrawler. 2018-11-30. Archived from the original on 2018-11-30. Retrieved 2019-02-02.
McGuigan, Brendan (2007). "What was the First Search Engine?". WiseGeek. Archived from the original on 2007-04-27. Retrieved 2019-02-18.

"WebCrawler Select: Review Categories". WebCrawler. 1996-10-24. Archived from the original on 1996-10-24. Retrieved 2019-02-03.
"WebCrawler Search". WebCrawler. 2018-05-31. Archived from the original on 2018-05-31. Retrieved 2019-02-02.
"WebCrawler Search". WebCrawler. 2018-11-30. Archived from the original on 2018-11-30. Retrieved 2019-02-02.

McGuigan, Brendan (2007). "What was the First Search Engine?". WiseGeek. Archived from the original on 2007-04-27. Retrieved 2019-02-18.

Keogh, Garret. "Excite buys WebCrawler from AOL". ZDNet. Retrieved 2019-01-15.