Figure 2.1 | Number of forums by year in which the last message was posted in Nature Network | 21 |
Figure 2.2 | Evolution of the number of validated profiles in BiomedExperts | 30 |
Figure 2.3 | Personal profile in BiomedExperts (Nicholas et al., 2015) | 31 |
Figure 3.1 | Evolution of the number of articles posted to CiteULike | 40 |
Figure 3.2 | Number of groups by year in which the last post was made in CiteULike | 42 |
Figure 3.3 | Evolution of the number of profiles in CiteULike | 45 |
Figure 3.4 | Number of profiles by year in which the last paper was posted in CiteULike | 46 |
Figure 3.5 | Binned distribution of posted references by user in CiteULike (log-log plot; bin = 10) | 47 |
Figure 3.6 | Evolution of the number of items to BibSonomy | 52 |
Figure 3.7 | Number of members by year in which the last paper was posted in BibSonomy | 54 |
Figure 3.8 | Number of groups by year in which the last paper was posted in BibSonomy | 58 |
Figure 4.1 | Number of retrieved papers, assigned papers and open papers by research discipline in Mendeley | 71 |
Figure 4.2 | Binned distribution of readers by article in Mendeley (log-log plot; bin = 10) | 73 |
Figure 4.3 | Evolution of number of profiles in Mendeley | 75 |
Figure 4.4 | Number of profiles and publications by discipline in Mendeley | 76 |
Figure 4.5 | Binned distribution of publications by user in Mendeley (log-log plot; bin = 10) | 77 |
Figure 4.6 | Binned distribution of followers by user in Mendeley (log-log plot; bin = 10) | 78 |
Figure 4.7 | Number of profiles by academic status in Mendeley | 79 |
Figure 4.8 | Percentage of groups and papers posted to groups by research discipline in Mendeley | 83 |
Figure 4.9 | Number of groups by year in which the last action was made in Mendeley | 85 |
Figure 4.10 | Number of profiles by research area in Zotero | 89 |
Figure 4.11 | Binned distribution of followings and followers by profile in Zotero (log-log plot) | 91 |
Figure 4.12 | Evolution of the number of profiles in Zotero | 92 |
Figure 4.13 | Evolution of the number of groups in Zotero | 94 |
Figure 4.14 | Number of groups by year in which the last post was made in Zotero | 94 |
Figure 5.1 | Binned distribution of RG Scores in ResearchGate (log-log plot; bin = 2.5) | 105 |
Figure 5.2 | Binned distribution of citations by document in ResearchGate (log-log plot; bin = 10) | 106 |
Figure 5.3 | Binned distribution of documents by profile in ResearchGate (log-log plot; bin = 10) | 107 |
Figure 5.4 | Binned distribution of views by document in ResearchGate (log-log plot; bin = 10) | 108 |
Figure 5.5 | Binned distribution of downloads by full-text document in ResearchGate (log-log plot; bin = 10) | 109 |
Figure 5.6 | Binned distribution of followings/followers by profile in ResearchGate (log-log plot; bin = 10) | 110 |
Figure 5.7 | Evolution of full-text papers in ResearchGate | 115 |
Figure 5.8 | Number of publications and full-text documents by research area in ResearchGate | 117 |
Figure 5.9 | Evolution of the number of profiles in ResearchGate | 120 |
Figure 5.10 | Number of profiles by academic status in ResearchGate | 120 |
Figure 5.11 | Number of profiles by research area in ResearchGate | 121 |
Figure 5.12 | Evolution of the number of questions in ResearchGate | 125 |
Figure 5.13 | Evolution of the number of profiles in Academia.edu | 128 |
Figure 5.14 | Number of profiles by academic status in Academia.edu | 132 |
Figure 5.15 | Binned distribution of profiles views by user in Academia.edu (log-log plot; bin = 10) | 133 |
Figure 5.16 | Venn diagrams of type of user by their actions: (a) all users; (b) only users with more than five followers and five posts | 134 |
Figure 5.17 | Binned distribution of followings/followers by user in Academia.edu (log-log plot; bin = 10) | 135 |
Figure 5.18 | Evolution of the number of documents in Academia.edu | 136 |
Figure 5.19 | Binned distribution of documents by profile in Academia.edu (log-log plot; bin = 10) | 137 |
Figure 5.20 | Binned distribution of views by profile in Academia.edu (log-log plot; bin = 10) | 138 |
Figure 5.21 | Evolution of the number of research interests in Academia.edu | 139 |
Figure 5.22 | Number of profiles and documents by research area in Academia.edu | 140 |
Figure 6.1 | Number of profiles and annual growth rate in each social site | 150 |
Figure 6.2 | Number of profiles by research area in each social site | 152 |
Figure 6.3 | Penetration index by country and Country Spreading index in each social site | 154 |
Figure 6.4 | Number of profiles by academic status in each social site | 155 |
Figure 6.5 | Number of items posted and annual growth rate in each social site | 157 |
Figure 6.6 | Number of publications by research area in each social site | 159 |
Figure 6.7 | Average of posts by user and percentage of users posting in each social site | 160 |
Figure 6.8 | Average of followers/followings and percentage of users with followers/followings | 162 |
Figure 6.9 | Number of groups, annual growth and percentage of items since 2014 in each social site | 163 |
Figure 6.10 | Activity, percentage of members and percentage of publications in each social site | 164 |
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