H    ↑
H-5000	h-index (74)
H-Soz-u-Kult	H3 (3)
Haeblers Typenrepertoriums	Handelsblatt (2)
HANS (3)	Harenberg-Kompaktlexikon (3)
Harvest (11)	Harvest Broker (2)
Hashtag	HBZ (22)
HBZ Werkzeugkasten	HBZ-CD (2)
HEADFAST (2)	HEADFORM
Heaps-Gesetz	HEBIS (9)
HEIDI (5)	HEIKO (2)
Helpedia	HelpfulMed
Helveticat	HERACLES
Herdan-Gesetz	Heritage
Hermeneus	HERMES
HERTIS (2)	Hessische Systematik
HEUREKA	Hexaglot Blitztranslator
Hexaglott der Volltextübersetzer	Hexaglott Volltext-Übersetzer
Heyne-Lexikon des erotischen Films	HIBROWSE (9)
HIDA (5)	HIDA3
Highway61 (2)	HiGrowth
Hijaak Pro2.0	HILCC
HILT (15)	Hirschberger-Systematik (5)
HISDOC/HDS	HISQL
HistCite (3)	Historica
Historical Abstracts	Historische Rezensionen online
HistoryGuide	Histos
HITIQA	HITS (3)
HITS-Algorithmus (5)	HJV-Systematik (6)
HJV-Systematik s. auch SWD-Systematik	HM-Card (2)
HOLLIS II	Homesite
Homosaurus	HOPAC (3)
Hopfield-Netze (4)	Hoppenstedt
Horizobu (2)	Horizon (3)
Horizon -> Dynix Horizon	Hornbostel-Sachs Classification of Musical Instruments
Hot Sheet	HotBot (52)
Hotbot Desktop 1.0	HotBot Quick Search
Hotdog (3)	HotETHICS
HotMap	Hotmetal (5)
ht://Dig	HTML (92)
HTML Assistant (2)	HTML Indexer
HTML Transit	HTMLed
HTTP	HTXM
Huffman codes	Human Brain Project
Humanities index	Hummingbird -> Google Hummingbird
Humord	HUNMARC
Hustedter Systematik	Hutchinson encyclopedia (3)
Hybrid Bookshelf	Hybrid Distributed Database
Hyparchiv	Hyper-G (6)
Hyperbolic tree (5)	HyperCard (9)
HYPERCAT (2)	HYPERDOC
HyperGlyphs (2)	HyperIndex
HYPERJOSEPH	HyperKRS
HyperLib (2)	HyperLynx (2)
HyperMan	Hypermethod Professioanl
HyperRez (2)	Hyperspace Analogue to Language (4)
Hypertext Webster	HYPERTIES (2)
Hypertspace Analogue to Language	HyperWAIS
HyperWave (4)	HyperWriter (2)
Hyplus	HYTELNET (3)
HyTime (6)
I    ↑
I'M GUIDE	I-Box
I-Finger	i-views (3)
I3R	IAC
IAFA	IAFA/WHOIS++
IAIMS (2)	IAIS-CORTEX
IATE	IBA
IBAS	iBase
IBB	IBID
IBIP (2)	IBIS (12)
IBM DB2 Database Server	IBM GTR -> GTR
IBM World Book	IBMs WBI
IBR	IBR-CD (2)
IBZ (4)	IBZ-CD (4)
IC Index	IC Media
ICA/DDS	ICABS (2)
ICAI (Intelligent Computer Assisted Instruction)	Icann (4)
Icarus (2)	ICC (19)
ICD (7)	ICD-10
Ichzahlnix.de	ICO
IconAuthor	ICONCLASS (19)
ICONDA®	ICONOS
ICONSOURCE	ICP (11)
Icra-Filter	ICS (3)
ID -> ekz-ID	IDC
ideaList (4)	Idealo
IDF (2)	IDIS
IdRef	IDS
IDX (10)	IEEE
IfB (6)	IFISH
IFLA (2)	IFLA Library Reference Model (3)
iGuide	IICA
IICL	IJBF
IkeWiki	ILC (7)
ILC2	ILEKS (4)
ILL (8)	ILLINET (6)
ILO Thesaurus	ILSA (2)
Ilse	ILTIS
Image Identify	Image Info Toolkit
Image2	ImageFinder
ImageFinder Museo	ImageMiner
ImagePals 2.0	ImageQuery
ImageSurfer	IMAGINARY
IMDAS -Pro	Imedia Surfimage
IMesh (3)	IMPACT (2)
IMPRIMATUR (2)	IMS/LOM
IndDoc	INDEX (13)
Index Antiquus	Index Medicus
Index Theologicus (3)	INDEX-5.0 (3)
Indexdienst Windows 2000/XP	Indexer
Indexicon	Industry Search
Indymedia	InetBib (12)
Inetbib 2006	INEX (2)
Inference Find (2)	InferenceFind (2)
Infoball (2)	InfoBank
InfoCentre -> ALS InfoCentre	Infochannel Designer
Infoconnex	infocore
INFODATA (4)	Infoface
Infofile	Infofilter
InfoFinder (2)	INFOHIWAY
infoLine	InFoLiS
Infolog	InfoMarket (3)
InfoNet (2)	Infopedia (11)
Infoplease (www.infoplease.com)	InfoPoint (2)
Informant	Informare
INFORMATION CENTER (2)	Information Partner
Information Please	Information Retrieval Thesaurus
Information Science Abstracts	InformationFinder
InformationLandscape	InformationQuest
Informe	Informix Online Workgroup Server
InfoROM (3)	InfoSeek (71)
InfoSlug	InfoSort
InfoSpider	InfoStation
Infothek (4)	INFOTRAC (3)
INFOTRAC 2	InfoVine
InfoVis	InfoWizard
InfroTrac	INIS
INIS-Thesaurus (3)	INIST
Inktomi (13)	Inmagic (3)
INMAGIC DB/TextWorks (7)	Inmagic Plus (4)
Inmagic WebPublisher (2)	Inmagic-Image
Innopac (3)	Inquery (6)
Inquirus	INQUIRY
Inquisit	InQuizit
Inrupt	INSI
Inside Information (2)	Insight
INSPEC (15)	INSPEC Classification (5)
INSPEC Ondisc (2)	INSPEC Thesaurus (2)
Inspiration	Instagram
INSYDER	Integrated impact indicator (I3)
Integrated information theory (2)	Integrated Level Classification
Intellexer	Intelligent capture
IntelligentCapture (11)	Interactive Access System (2)
Interaktive Weltatlas (2)	InterAp
Interbase	InterCAT (9)
INTERES	InterFind
INTERMARC (3)	International Encyclopedia of United Science
Internationaler Biographischer Index	Internet Archive (4)
Internet Archive (www.archive.org)	Internet Archive Wayback Machine
Internet Assistant (2)	Internet Connection '96
Internet Explorer (4)	Internet Hunt
Internet Movie Database (2)	Internet Public Library (8)
Internet Resources Meta-Index	InternetLife
INTERNETSEARCH	InternetSleuth (4)
InternetWorks Lite	Interrogator
Intersearch (3)	InTEXT (4)
IntraSearch	Intute
IODyne	ION (2)
IOTA (2)	IPC (20)
IPC-6	IPC-7 (2)
IPv6 (3)	iQvoc
iRANK	IRAS
IRB	IRC (2)
IREON	IrfanView
Iride	IRIS (6)
IROSE	IS0 5127
ISA (7)	ISAAR
ISAAR (CPF)	ISAAR(CPF) (6)
ISAD (2)	ISAD (G)
ISAD(G) (6)	ISAD-G
ISADN	ISAN (2)
ISBD (50)	ISBD(A)
ISBD(CF) (2)	ISBD(ER) (8)
ISBD(G)	ISBD(M) (2)
ISBD(PM)	ISBD(S) (5)
ISBN (23)	ISDB
ISDB(CR)	ISDN (3)
ISDS (2)	ISI
ISI 2011	ISI Discovery Agent -> Discovery Agent
ISI Essential Science Indicators	ISI Journal Impact Factor
ISI Map of Science -> Map of Science	ISI Web of Science -> Web of Science
ISKO (3)	ISM
ISMN (5)	ISO (3)
ISO 10744	ISO 15489
ISO 25964 (9)	ISO 25964-1
ISO 25964-2 (3)	ISO 26262
ISO 2709 (6)	ISO 2788 (2)
ISO 5964 (2)	ISO 704
ISO 9000 (8)	ISO 999 (2)
ISO NP 25964	ISO/DIS 15489
ISRC	ISRN
ISSN (8)	ISSN compact
IST	ISTA
ISTC	Isys (4)
Isys Desktop	Isys Desktop 6.03
ISYS:desktop 6	ITA (4)
Iter	Ithaki
iThenticate (www.ithenticate.com)	Itools
iView Media Pro	iView Multimedia
IWP	Ixquick (5)
iXtrieve	Ize (3)
J    ↑
JabRef (2)	Jaccard index
Jaconde	JADE (3)
Jahrbuch Fortschritte Mathematik	Jahrbuch über die Fortschritt der Mathematik
JANET (11)	JASIS (4)
JASIST (4)	JASON (23)
JASON-SK	Java (27)
JavaScript (15)	JeromeDL
Jessica	Jester
JICST	JITA
Joomla (2)	Journal Citation Report (2)
Journal Citation Reports (14)	Journal Impact Factor
Journal of documentation (2)	Journal of informetrics
Journal of the American Chemical Society	Journal.Quick.Finder
JPEG (5)	jqplay
JSKOS (2)	JSON
JSTOR (5)	Jughead (2)
JumpStation (4)	junii2
Juris (2)	Juris-Data
K    ↑
K-Discovery	K-Infinity (3)
k.portal	K10plus
K3 (9)	KAB (40)
KAB-K	KAB/Art (2)
KAB/BF (2)	KAB/E (22)
KAB/K (4)	KAB/MN
KAB/Ter (3)	KAB/TM (3)
KABA (8)	KABA Subject Headings
KADS22	Kaiser systematic indexing (5)
Kaisers systematic indexing	Kaisers's Systematic Indexing
Kallias (2)	Kalliope (3)
Kangoo	KAON
KAON OI-Modeller	KARIN
Karma	Karp-Rabin Algorithmus
Kartoo (3)	Kasbah
KASCADE (13)	Katabounga
KATGALAV	KAware (3)
KAware2	Kayser (3)
KBMT-89	KBS
KDC (2)	KDC-6
KDSF	Kelkoo
KERMIT (2)	KES
Keyword-trees	KeyWordsPlus (3)
KHS (5)	Kid's catalog (8)
KIDLINK	KidsClick (2)
Kilroy	KIM (3)
Kindler	Kindlers Literatur-Lexikon
KINECOM (3)	KINF
Kirjasampo.fi	KISS
KIT (3)	KITTY (3)
KL-ONE (4)	Klett Personal Translator
Knaurs Lexikon von A-Z (7)	Knight-Ridder (3)
KnightRidder	kNN-Algorithmus
KNO CD (2)	KNOW-IT
KNOWIT	KnowIt-all
Knowledge Base	Knowledge Graph
Knowledge Manager	Knowledge Navigator
KnowledgeBrowser (4)	KnowledgeCite (2)
KnowledgeClass (2)	KnowledgeFinder (19)
KnowledgeIndex	KnowledgeManager
KnowledgeMiner => USU KnowledgeMiner	KnowledgeSeeker
Knuth-Morris-Pratt Algorithmus	Knuth-Morris-Pratt-Algorithmus (2)
KOALA (11)	KOBV (33)
Koha (6)	Kohonen-Algorithmus
Kohonen-Netz (6)	KOKON
Kolibri (2)	KoMoHe (10)
Kompakt Brockhaus Multimedial (7)	Kompaktwissen von A-Z
KONDOR (2)	KonSearch
kopal (3)	KOPS
Korean Decimal Classification	Korpus Englisch
Kosmos Atlas des Sonnensystems	Kosmos Kompakt Lexikon 2000 (2)
Kosmos Kompakt Wissen 2002	Kosmos Kompaktwissen 2001
Kosmos Kompaktwissen 2002	Kosmos Weltatlas (3)
Kostenlos.de	KPWIN
Krakatoa	Krünitz-Enzyklopädie (2)
KSL Ontology Editor	Kuali
KUG (2)	Kulturfahrplan (Stein) (2)
Kursbuch	Kürschner (4)
KVK (11)	KWAC (2)
KWIC (8)	KWIK (2)
KWOC