1 | 1 | Social Science Research Network | | 27 | 2 | 6 | 4 |
2 | 2 | Arxiv.org e-Print Archive | | 18 | 1 | 1084 | 2 |
3 | 3 | (1) Smithsonian/NASA Astrophysics Data System | | 2 | 4 | 1243 | 1 |
4 | 6 | CiteSeerX | | 4 | 3 | 1456 | 6 |
5 | 9 | Virginia Tech University Digital Library and Archives | | 389 | 7 | 57 | 104 |
6 | 12 | MIT Institutional Repository | | 116 | 15 | 18 | 41 |
7 | 13 | University of California eScholarship Repository | | 349 | 17 | 25 | 20 |
8 | 15 | NASA Technical Reports Server | | 53 | 9 | 3 | 231 |
9 | 20 | Agecon Search Research in Agricultural and Applied Economics | | 233 | 31 | 24 | 32 |
10 | 23 | University of Michigan Deep Blue | | 84 | 25 | 23 | 169 |
11 | 31 | University of Illinois at Urbana Champaign Ideals | | 14 | 77 | 37 | 78 |
12 | 35 | Georgia Tech's Institutional Repository | | 29 | 76 | 28 | 84 |
13 | 36 | University of North Texas Digital Library | | 13 | 26 | 136 | 329 |
14 | 41 | Oregon State University ScholarsArchive@OSU | | 7 | 56 | 38 | 200 |
15 | 49 | Ohio State University Knowledge Bank | | 139 | 49 | 77 | 181 |
16 | 50 | Cryptology ePrint Archive | | 834 | 18 | 250 | 277 |
17 | 55 | University of Nebraska Lincoln DigitalCommons | | 262 | 20 | 1305 | 48 |
18 | 64 | TDL Repository Texas Digital Library Repository | | 62 | 324 | 52 | 13 |
19 | 75 | Kansas State University Research Exchange | | 108 | 129 | 180 | 99 |
20 | 76 | University of Oregon Scholars' Bank | | 101 | 70 | 190 | 253 |
21 | 82 | University of Maryland Digital Repository DRUM | | 387 | 107 | 135 | 130 |
22 | 84 | Archive of European Integration | | 191 | 82 | 118 | 263 |
23 | 88 | University of Hawai'i at Manoa ScholarSpace | | 42 | 98 | 59 | 422 |
24 | 101 | Materials Digital Library | | 355 | 21 | 51 | 960 |
25 | 107 | University of Minnesota Digital Conservancy | | 421 | 171 | 119 | 143 |
26 | 113 | Tufts University Perseus Digital Library | | 3 | 5 | 1263 | 1336 |
27 | 116 | Columbia University Academic Commons | | 77 | 196 | 295 | 180 |
28 | 120 | Purdue University DigitalCommons | | 460 | 59 | 1287 | 94 |
29 | 132 | University of Wisconsin Digital Repository | | 223 | 141 | 207 | 336 |
30 | 134 | Philosophy of Science Archive | | 1053 | 40 | 468 | 501 |
31 | 136 | Indiana University Scholarworks | | 302 | 112 | 341 | 344 |
32 | 138 | University of Kansas Scholarworks | | 343 | 194 | 249 | 192 |
33 | 141 | Duke University DukeSpace | | 323 | 193 | 353 | 178 |
34 | 144 | Open Access Server of the Woods Hole Scientific Community | | 21 | 87 | 162 | 712 |
35 | 145 | Florida State University Electronic Theses and Dissertations | | 1072 | 78 | 240 | 371 |
36 | 147 | Ball State University Institutional Repository Cardinal Scholar | | 331 | 528 | 252 | 15 |
37 | 148 | University of Pennsylvania ScholarlyCommons | | 633 | 53 | 1314 | 116 |
38 | 155 | CalTech Authors | | 169 | 148 | 61 | 499 |
39 | 156 | Policy Archive | | 558 | 67 | 102 | 644 |
40 | 170 | Cornell University ILR School DigitalCommons | | 663 | 45 | 1353 | 145 |
41 | 173 | University of Arizona Campus Repository | | 458 | 309 | 79 | 174 |
42 | 182 | North Carolina State University Digital Repository | | 312 | 229 | 95 | 349 |
43 | 186 | SUNY Institutional Repository | | 208 | 164 | 152 | 489 |
44 | 189 | Texas A&M University Digital Repository | | 242 | 142 | 103 | 566 |
45 | 194 | University of Massachusetts Amherst Scholarworks | | 674 | 102 | 1287 | 112 |
46 | 195 | Cal Poly DigitalCommons | | 639 | 94 | 1375 | 75 |
47 | 196 | University of New México Institutional Repository | | 183 | 350 | 143 | 222 |
48 | 196 | Aquatic Commons | | 780 | 89 | 262 | 567 |
49 | 198 | California State University Sacramento Digital Repository | | 429 | 215 | 350 | 277 |
50 | 199 | Vanderbilt University Electronic Theses and Dissertations | | 437 | 207 | 416 | 289 |
51 | 201 | University of Missouri Repository Mospace | | 170 | 395 | 114 | 191 |
52 | 203 | Jet Propulsion Laboratory Beacon Espace | | 290 | 121 | 94 | 688 |
53 | 209 | Cornell University eCommons | | 838 | 165 | 329 | 336 |
54 | 213 | Harvard University Digital Access to Scholarship | | 695 | 169 | 154 | 471 |
55 | 224 | Rice University Scholarship | | 51 | 263 | 11 | 730 |
56 | 228 | Rochester Institute of Technology Digital Media Library | | 218 | 304 | 178 | 391 |
57 | 229 | University of Washington Researchworks | | 222 | 212 | 392 | 473 |
58 | 231 | University of Texas at Austin Libraries Digital Repository | | 141 | 236 | 146 | 576 |
59 | 235 | Digital Library of the Commons | | 1142 | 58 | 591 | 709 |
60 | 244 | Wichita State University Shocker Open Access Repository | | 862 | 253 | 269 | 365 |
61 | 248 | University of Pittsburgh d-Scholarship | | 353 | 412 | 185 | 270 |
62 | 253 | Smithsonian Institution Digital Repository | | 272 | 116 | 128 | 928 |
63 | 277 | University of Texas Arlington Institutional Repository | | 453 | 377 | 375 | 318 |
64 | 280 | College of William & Mary Digital Archive | | 272 | 348 | 318 | 447 |
65 | 285 | eCommons Cornell University | | 1085 | 282 | 258 | 418 |
66 | 305 | AMNH Scientific Publications | | 981 | 54 | 325 | 1075 |
67 | 306 | Utah State University Digital Commons | | 565 | 184 | 1385 | 153 |
68 | 308 | University of South Florida Tampa Scholar Commons | | 648 | 238 | 1340 | 138 |
69 | 321 | CalTech Electronic Theses and Dissertations | | 297 | 402 | 173 | 526 |
70 | 326 | University of Tennessee Knoxville Research and Creative Exchange TRACE | | 727 | 203 | 1417 | 115 |
71 | 335 | Western Kentucky University DigitalCommons | | 807 | 300 | 1366 | 82 |
72 | 344 | Liberty University DigitalCommons | | 1033 | 177 | 1311 | 277 |
73 | 346 | Southern Illinois University Carbondale Repository OpenSIUC | | 829 | 223 | 1417 | 107 |
74 | 348 | CalTech Engineering and Science Online | | 770 | 227 | 425 | 718 |
75 | 353 | Indiana University Purdue University Indianapolis Digital Archive | | 443 | 385 | 263 | 571 |
76 | 353 | University of Georgia Athenaeum | | 191 | 573 | 228 | 435 |
77 | 357 | Washington State University Research Exchange | | 39 | 504 | 506 | 504 |
78 | 371 | University of Iowa Research Online | | 782 | 192 | 1417 | 189 |
79 | 373 | University of Delaware Library Institutional Repository | | 949 | 372 | 157 | 585 |
80 | 377 | Thomas Jefferson University Digital Commons | | 1119 | 231 | 1310 | 231 |
81 | 395 | Georgia State University Digital Archive | | 900 | 247 | 1385 | 171 |
82 | 402 | Texas State University Digital Collections | | 61 | 595 | 521 | 483 |
83 | 403 | University of Hawaii at Manoa eVols | | 252 | 381 | 39 | 932 |
84 | 405 | Rhodes College Archives Digital Collection | | 888 | 487 | 326 | 449 |
85 | 407 | Drexel University e-Repository and Archive | | 643 | 330 | 476 | 685 |
86 | 410 | George Mason University Archival Repository Service | | 376 | 584 | 501 | 402 |
87 | 417 | San Diego State University Digital Research Collection | | 328 | 661 | 466 | 359 |
88 | 419 | National Sea Grant Library | | 1209 | 199 | 313 | 879 |
89 | 423 | Vanderbilt University DiscoverArchive | | 260 | 585 | 273 | 561 |
90 | 432 | University of Pittsburgh Electronic Theses and Dissertations | | 1226 | 172 | 974 | 696 |
91 | 441 | University of Rochester Research Institutional Repository | | 127 | 178 | 1456 | 532 |
92 | 446 | Grand Valley State University ScholarWorks | | 1156 | 455 | 1189 | 217 |
93 | 456 | Electronic Theses and Dissertations Emory University | | 238 | 656 | 587 | 465 |
94 | 464 | Humboldt State University Library Digital Scholar | | 532 | 433 | 674 | 641 |
95 | 472 | Missouri University of Science & Technology Scholars' Mine | | 822 | 557 | 335 | 584 |
96 | 473 | University of Arizona Institutional Repository | | 161 | 226 | 962 | 1012 |
97 | 480 | Pennsylvania State University Electronic Theses and Dissertation Archive | | 1000 | 352 | 1417 | 182 |
98 | 491 | Pace University DigitalCommons | | 1049 | 157 | 1385 | 577 |
99 | 492 | Baylor University Electronically Accessible Research Documents BEAR | | 614 | 670 | 627 | 460 |
100 | 494 | Duke University Law Faculty Scholarship Repository | | 795 | 130 | 1456 | 621 |