Title	Proposed Protocol to Solve Discovering Hidden Web Hosts Problem
Author	Mohamed A. Khattab, Yasser Fouad, Osama Abu Rawash
Citation	Vol. 9  No. 8  pp. 247-254
Keywords	Deep web, hidden web, invisible web, search engines, web crawlers, host list protocol, deep web resources, discover web resources, discover hidden web

Title	Efficient Multi-threaded Crawling Using In Memory Data Structures
Author	Mohammad A.R. Abdeen,
Citation	Vol. 20  No. 2  pp. 88-92
Keywords	Web Crawlers, Distributed Applications, Multi-threading, In-memory Data Structures, Performance Evaluation.