United States of America

rankingWorld Ranksort descendingInstitutoSizeVisibilityFiles Richscholar
1
1
Arxiv.org e-Print Archive
6
1
1
4
2
2
CiteSeerX
3
2
3
3
3
3
(1) Smithsonian/NASA Astrophysics Data System
2
5
2
2
4
6
NASA Technical Reports Server
64
9
7
6
5
8
University of California eScholarship Repository
242
6
6
14
6
10
MIT Institutional Repository
103
11
10
43
7
11
University of Nebraska Lincoln DigitalCommons
351
12
13
22
8
12
University of Michigan Deep Blue
122
16
14
88
9
20
University of North Texas Digital Library
42
27
20
126
10
21
Agecon Search Research in Agricultural and Applied Economics
177
23
59
47
11
22
Purdue University DigitalCommons
456
28
26
39
12
25
bioRxiv
548
15
8
365
13
26
Virginia Tech University Digital Library and Archives
969
10
17
396
14
28
University of Illinois at Urbana Champaign Ideals
85
40
39
38
15
29
University of Pennsylvania ScholarlyCommons
641
24
30
106
16
34
Cryptology ePrint Archive
954
13
12
619
17
35
Oregon State University [email protected]
440
33
55
76
18
41
University of Minnesota Digital Conservancy
141
32
91
145
19
46
Ohio State University Knowledge Bank
201
64
71
58
20
53
Harvard University Digital Access to Scholarship
454
22
42
395
21
56
Digital Repository Iowa State University
382
101
90
21
22
58
Georgia Tech's Institutional Repository
33
85
62
135
23
62
National Agricultural Library Digital Repository
170
58
134
130
24
63
Indiana University Scholarworks
168
37
73
310
25
64
University of South Florida Tampa Scholar Commons
733
44
54
180
26
69
University of Massachusetts Amherst Scholarworks
735
62
70
121
27
70
Utah State University Digital Commons
559
75
63
99
28
71
University of Iowa Research Online
646
74
46
120
29
73
Texas ScholarWorks University of Texas at Austin
30
95
78
169
30
74
CalTech Authors
201
48
74
330
31
75
Cal Poly DigitalCommons
780
70
83
108
32
79
University of Arizona Campus Repository
600
101
130
47
33
88
Archive of European Integration
307
83
195
142
34
89
University of Hawai'i at Manoa ScholarSpace
294
84
79
225
35
90
Tufts University Perseus Digital Library
18
4
5
1955
36
92
Cornell University eCommons
266
108
144
172
37
94
University of Tennessee Knoxville Research and Creative Exchange TRACE
658
113
118
131
38
98
University of Maryland Digital Repository DRUM
482
126
95
150
39
101
University of Kansas Scholarworks
596
111
96
183
40
104
Rice University Scholarship
13
216
157
201
41
106
Columbia University Academic Commons
133
96
125
355
42
108
University of Washington Researchworks
53
119
88
378
43
114
University of Oregon Scholars' Bank
50
133
185
327
44
117
Carnegie Mellon University Research Showcase
898
82
98
352
45
123
NSU Works Nova Southeastern University Institutional Repository
849
98
225
261
46
127
VTechWorks
24
379
260
76
47
130
Philosophy of Science Archive
758
61
52
783
48
133
Digital Library of the Commons
761
98
123
402
49
134
University of Arizona Institutional Repository
771
123
109
345
50
136
Western Kentucky University DigitalCommons
826
217
179
132
51
138
Yale Law School Legal Scholarship Repository Yale Law School Research
1244
56
104
650
52
138
Southern Illinois University Carbondale Repository OpenSIUC
907
162
128
226
53
144
Duke University DukeSpace
463
120
220
361
54
150
University of Kentucky Uknowledge
821
200
126
218
55
154
University of Missouri Repository Mospace
281
266
204
180
56
157
Institutional Archive of the United States Naval Postgraduate School Calhoun
463
308
319
90
57
160
Kansas State University Research Exchange
185
217
251
327
58
160
OAK Trust Texas A&M University Repository
118
411
399
54
59
163
AMNH Scientific Publications
498
87
67
803
60
165
University of Pittsburgh d-Scholarship
528
209
154
320
61
174
Grand Valley State University ScholarWorks
1360
190
114
274
62
175
Western Michigan University ScholarWorks
942
233
226
204
63
177
North Carolina State University Digital Repository
56
253
257
385
64
180
Pennsylvania State University Electronic Theses and Dissertation Archive
43
321
423
207
65
187
William & Mary Law School Scholarship Repository
1146
78
122
746
66
189
University of Connecticut DigitalCommons
1153
210
156
258
67
192
University of Florida Digital Collections
167
26
18
1724
68
196
Claremont Colleges Scholarship
1170
186
127
385
69
200
San Jose State University ScholarWorks
903
248
121
324
70
202
University of Rochester Research Institutional Repository
108
229
287
498
71
206
University of Nevada Las Vegas Repository
1041
221
252
292
72
208
Open Access Institutional Repository of Georgia State University
1181
232
108
343
73
211
Liberty University DigitalCommons
1286
182
137
441
74
214
University of Rhode Island DigitalCommons
981
240
210
304
75
216
Marquette University e-Publications
959
226
312
303
76
236
Pacific University CommonKnowledge
1268
238
208
335
77
239
Wayne State University DigitalCommons
1051
241
141
430
78
243
University of Wisconsin Digital Repository
479
264
244
419
79
246
FLASH The Fordham Law Archive of Scholarship and History
1107
54
158
1187
80
247
Florida State University DigiNole Commons Repository
675
258
131
517
81
251
Johns Hopkins University Repository JScholarship
244
195
112
888
82
254
Syracuse University Research Facility and Collaborative Environment SURFACE
1062
315
223
249
83
255
Brigham Young University ScholarsArchive
686
407
286
165
84
261
Policy Archive
969
116
266
835
85
262
Indiana University Purdue University Indianapolis Digital Archive
199
362
317
390
86
263
Digital Commons Georgia Southern University
1017
319
348
244
87
264
Digital Commons at Loyola Marymount University and Loyola Law School Research
1310
117
120
888
88
276
Thomas Jefferson University Digital Commons
1026
269
385
437
89
278
Repository University of Montana
797
506
482
94
90
282
University of New México Institutional Repository
162
344
296
583
91
292
Virginia Henderson Global Nursing e-Repository
1042
508
545
78
92
293
Rutgers Community Repository Rutgers University
443
437
273
301
93
296
Florida International University DigitalCommons
1093
347
295
355
94
301
CalTech Electronic Theses and Dissertations
917
312
406
412
95
303
CalTech Engineering and Science Online
1547
210
218
665
96
304
Aquatic Commons
780
418
469
227
97
306
Digital Commons American University Washington College of Law Research
1513
136
237
882
98
311
Butler University Digital Commons
1122
428
396
210
99
315
Pace University DigitalCommons
1475
159
250
870
100
319
Open Access Server of the Woods Hole Scientific Community
4
420
461
756

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