What Are Some Sites for Buying PDF Versions of Academic Books Such As?

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What are some sites for buying PDF versions of academic books such as soft robotics and academic writing?

Some journals allow online comments on their articles. Examples are the BMJ with their Rapid Responses and PLOS. Others, such as those from my publisher Hindawi, accept letters to the editor. Some open peer-reviewed journals make public the pre-publication reviews, e.g. the BMC-series medical journals and the Copernicus journals, which operate a public review system. Another post-publication review journal is F1000 Research. Some platforms allow cross-publisher commentary. F1000 Prime has expert commentary, but only selected academics can review and it is a subscription service. PubMed Commons accepts comments on PubMed abstracts from anyone with an article in PubMed. The previous options I've mentioned expect use of real names, but PubPeer allows and encourages anonymous commenting. Much of PubPeer's commentary is about errors. The scholarly social networks ResearchGate, Academia and Mendeley all have forums to comment on articles. Publons allows reviewers for some journals to post their reviews of accepted articles, and others may also comment post-publication. There are many blogs that write about academic work, some of which are aggregated by Research Blogging. Retraction Watch highlights errors and misconduct. Beyond blogs, other social networking sites carry commentary on articles, most notably Twitter. Altmetric aggregates activity around articles, including tweets, reporting an overall score. PLOS reports article-level metrics for each article, which includes copies of any tweets. Crossref is planning a cross-publisher extension of PLOS' ALMs tool in 2017.

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OpenAI's blog is fairly active in commenting on articles, but it is mostly aggregating articles. Many articles aren't commented on widely. The journal-specific social networks have been discussed in more detail in other posts. One of the most widely-read articles in English has been written by Andrew German and published by Yale Press. A version of this post appeared on Google Scholar as a guest post on December 13, 2009. I contributed to the Oxford Internet Institute's blog in the following year. Blogging was just beginning in the UK, for example. Blogged content has also grown in popularity since. It is now common to post about articles that are published through the Journal News aggregator.