Top Portals

World Rank	Portal	Country	Tamaño	Visibilidad	Files Rich	scholar
1	Scientific Electronic Library Online Brazil SciELO Brazil		5	3	4	2
2	DIALNET		4	4	5	3
3	China National Knowledge Infrastructure		1	5	110	1
4	Berkeley Electronic Press BEPress		15	1	38	8
5	Redalyc		28	6	2	5
6	HAL Hyper Article en Ligne		12	9	3	7
7	Revues.org		26	1	78	9
8	Érudit Consortium interuniversitaire		35	11	1	17
9	Scientific Electronic Library Online Chile SciELO Chile		50	10	15	12
10	Scientific Electronic Library Online España SciELO España		11	16	21	16
11	Thèses en Ligne TEL		25	13	11	25
12	Scientific Electronic Library Online Colombia SciELO Colombia		8	25	19	10
13	DiVA Digitala Vetenskapliga Arkivet Academic Archive On-line		20	12	93	4
14	SciELO Public Health		10	18	16	23
15	OhioLINK Electronic Thesis and Dissertation Center		69	23	8	13
16	Scientific Electronic Library Online Argentina SciELO Argentina		22	22	24	19
17	Portal de Revistas Científicas Universidad Complutense de Madrid		23	17	42	22
18	Portal of Scientific Journals of Croatia Hrčak		45	21	65	6
19	Theseus Digital collections of Finnish Universities of Applied Sciences		20	30	7	15
20	(1) Tesis Doctorals en Xarxa TDX		29	24	9	30
21	National Library of Finland DORIA		18	19	14	36
22	KoreaMed Synapse		33	39	13	11
23	RACO Revistes Catalanes amb Accés Obert		13	15	94	14
24	I-Revues		14	26	12	32
25	Scientific Electronic Library Online Mexico SciELO México		9	31	43	20
26	(1) Hungarian Electronic Library		30	7	20	81
27	Scientific Electronic Library Online Cuba SciELO Cuba		16	36	36	21
28	National Institute of Science Communication and Information Resources Online Periodical Repository		37	35	26	27
29	Revistas Científicas del CSIC		41	20	83	31
30	INSPIRE High Energy Physics		3	32	18	51
31	PERSEE Périodiques Scientifiques en Édition Électronique		39	8	102	60
32	Scientific Electronic Library Online Portugal SciELO Portugal		60	33	37	32
33	Repositorio Digital de CLACSO		63	34	22	48
34	Reseau des Bibliotheques de Suisse Occidentale Bibliotheque Numerique		58	29	73	29
35	PePSIC Portal de Periódicos Eletrônicos em Psicologia		54	53	35	28
36	Diposit de la Recerca de Catalunya		42	57	28	26
37	FLACSO Andes Repositorio		40	37	32	50
38	Skemman Repository Consortium Iceland Universities		48	46	23	44
39	North Carolina Digital Online Collection of Knowledge and Scholarship		52	47	33	39
40	Scientific Electronic Library Online South Africa SciELO South Africa		36	51	49	34
41	Scientific Electronic Library Online Perú SciELO Perú		85	43	40	35
42	Scientific Electronic Library Online Costa Rica SciELO Costa Rica		34	41	51	45
43	Vernadsky National Library of Ukraine Digital Journals		24	73	27	24
44	Quality Content of Saxony QUCOSA		71	58	30	40
45	Digitale Bibliothek Thueringen		75	42	25	62
46	EThOS E-Theses Online British Library		47	44	110	18
47	Dolnośląska Biblioteka Cyfrowa DBC Consortium		37	49	56	53
48	ShodhGanga A resevior of Indian Theses		59	54	10	68
49	Revistas Científicas de la Universidad de Murcia		62	38	89	41
50	Dépôt Universitaire de Mémoires Après Soutenance DUMAS		72	61	39	37
51	Repozytorium Cyfrowego Instytutów Naukowych / Digital Repository of Scientific Institutions		31	59	41	66
52	Iowa Publications Online		70	28	29	91
53	(1) Cybertesis Perú Universidad Nacional Mayor de San Marcos		66	64	17	64
54	Portal de Revistas de la Pontificia Universidad Católica del Perú		67	56	72	54
55	Hemeroteca Científica Catalana		49	63	88	38
56	Washington Research Library Consortium Aladdin Research Commons		78	69	31	59
57	Sammelpunkt Elektronisch archivierte Theorie		87	50	53	74
58	Scientific Electronic Library Online Uruguay SciELO Uruguay		89	67	57	52
59	SciELO Social Sciences		57	60	60	72
60	South African Thesis and Dissertations		63	79	47	58
61	Scientific Electronic Library Online Venezuela SciELO Venezuela		52	27	34	100
62	Portal de Revistas Académicas Universidad de Chile		55	74	74	65
63	Revistas Electrónicas de la Pontificia Universidad Javeriana		51	77	94	49
64	Repositorio de las Revistas Científicas de la Universidad de Costa Rica		92	75	67	57
65	Pakistan Research Repository		83	76	80	61
66	Travesía Recursos Digitales para la Cooperación Bibliotecaria		84	62	52	85
67	Online Archive of California		17	14	110	100
68	Artemisa Revistas Biomedicas Mexicanas		91	95	45	46
69	Repositório Comum		44	93	48	63
70	Catalogue des Publications Electroniques de la Communaute Française de Belgique		95	66	66	78
71	Scientific Electronic Library Online Paraguay SciELO Paraguay		96	80	63	67
72	SOLAR Scientific Open-access Literature Archive and Repository CNR		65	102	50	55
73	Association for Learning Technology Repository		94	71	62	83
74	National Repository of Grey Literature National Technical Library in Prague		6	83	59	88
75	Liberal Arts (Universities Consortium) Scholarly Repository		76	85	55	79
76	State Library of Massachusetts Electronic Repository		27	70	6	100
77	Portal electrónico de Revistas Académicas de la Universidad Nacional		61	99	91	42
78	Alaska Digital Archives		2	48	85	100
79	University of New Orleans Digital Research Collections		19	45	81	100
80	OpenDepot		73	81	58	84
81	Repozytorium CeON Repository Centre for Open Science		46	90	68	76
82	Depósito de Dissertações e Teses Digitais DiTeD		79	72	44	94
83	OhioLINK Digital Resource Commons		32	52	71	100
84	LEO Letteratura Elettronica Online		86	68	105	82
85	Repositorio Institucional de Asturias		82	82	61	90
86	CYBRA Lodz Regional Digital Library		56	91	79	80
87	Revistas de la Universidad Nacional de Córdoba		88	97	110	43
88	National Repository of Grey Literature		7	98	64	88
89	Revistas Científicas de la Universitat de Barcelona		77	100	99	56
90	Open Journals Sapienza		90	89	105	71
91	Revistas Académicas de la Universidad de Costa Rica		74	108	96	47
92	Digital Library of the Caribbean		93	55	86	100
93	IYOKAN Institutional Repository Ehime area		80	115	54	69
94	National Science Foundation of Sri Lanka Digital Repository		68	103	46	92
95	Biblioteca Digital de Teses e Dissertacoes BDTD		117	40	99	100
96	HELIN Consortium Digital Commons		99	92	110	87
97	Herce Archives		106	109	84	86
98	RIAN Pathways to Irish Research		43	86	110	99
99	Estonian National Library Digital Archive		102	65	110	100
100	Revistas de la Universidad Pontificia Javeriana Cali		97	122	102	70

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