PKB.SOURCEFORGE.NET has 7 keywords

Second position — 1 keywords | Third position — 1 keywords

Keywords Analytic

the 2th position for pkb.sourceforge.net

#	Keyword	Results	Change	Check Date
2	personal knolege base	50 800 000	0	2014-09-16

the 3th position for pkb.sourceforge.net

#	Keyword	Results	Change	Check Date
3	personal knowledge download	149 000 000	20	2014-06-16

positions above than 3th pkb.sourceforge.net

#	Keyword	Results	Change	Check Date
4	creating a personal knowledge base	12 500 000	0	2014-01-07
4	Personal Knowledge Base	60 300 000	-2	2015-04-17
8	online personal knowledge base	33 200 000	0	2014-08-22
15	pkb.or.id	4 880 000	8	2013-11-03
20	create your own personal knowledge base	5 350 000	0	2014-01-22