ChemRxiv (pronounced 'chem-archive') is a free archive. One can search this archive to retrieve research on various categories of Chemistry research - including the areas of interest to health professionals. It also serves as a repository where one can submit,unpublished preprints in chemistry and related areas. https://chemrxiv.org/ Any preprint archive allows researchers to share results with colleagues in the same field, for the purpose of discussion and receiving comments. This not only helps he research move on in better directions, but also helps researchers get comments before they submit the paper for publication in a journal. Most importantly it establishes…

PubMed Labs is a test site where the NLM/NCBI are experimenting with new features and tools that may eventually incorporate in PubMed.  They are looking for inputs on these features / tools and the final incorporation will be based on the inputs they receive – so what you see today may get included as it is, or in a revised form. -------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------- What is the NCBI/NLM working at? Better search algorithms: A new search algorithm that uses machine learning to more accurately find the best matches. The “best match” option to display results already exists and is based on…