ElseWhere is a free Chrome add-on developed by Alf Eaton. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This add-on serves two main purposes: redirecting from Elsevier login pages to thinkchecksubmit.org and adding sci-hub.io to ScienceDirect articles.

With ElseWhere installed, users will no longer be redirected to Elsevier login pages when trying to access content. Instead, they will be redirected to thinkchecksubmit.org, which provides information on trusted journals and publishers. This feature helps users make informed decisions about where to publish their work.

Additionally, ElseWhere adds sci-hub.io to ScienceDirect articles. Sci-Hub is a controversial website that provides free access to scientific articles that are typically behind paywalls. By adding this functionality, ElseWhere allows users to bypass paywalls and access research articles without any restrictions.

Overall, ElseWhere is a useful Chrome add-on for researchers and academics who want to navigate Elsevier's login pages more efficiently and access ScienceDirect articles without encountering paywalls.