A subject based repository of life sciences journal literature as well as materials deposited by individual authors. This is an extensive and expansive resource for researchers in the bioscience, biotech and biomedical related disciplines. The citations database PubMed links to full-text materials within PMC. Thanks to a NLM digitisation activity older journal content is being made freely available, back to the early 1900s in some cases. Currently 250 journal titles are included within the site. It is possible to register for an update email to ensure notification when new journals are added to the PMC collections. The size value given is the number of author submitted manuscripts.

ICOS Carbon Portal offers free access to high-quality and standardised greenhouse gas data, as well as to scientific and educational products and services. The Carbon Portal is a ‘one-stop shop’ for all ICOS data products. Carbon Portal manages data security, enforcement of the ICOS data policy, with user-friendly (and machine-friendly) internet- and other computer-network based interfaces. It organises long-term archiving of ICOS data products to guarantee their safe storage, future access and easy re-use. FAIR data handling is the key for the high ICOS data quality. ICOS has created a transparent, documented and reproducible process throughout the data life cycle: from the measurements at the station via the Thematic Centres and the ICOS Carbon Portal to the user. All data distributed from the stations and going through the Central Facilities, are distributed in Carbon Portal. We are following the international developments in FAIR data management to build interoperable systems and make ICOS data free available in a transparent way. The Carbon Portal is hosted by the Lund University in Sweden and Wageningen University in the Netherlands.

This is a free archive and distribution service for unpublished preprints in the fields of organic chemistry and nanotechnology. It is managed and funded by the Beilstein-Institut, A non-profit institute dedicated to the advancement of the chemical sciences. Users may set up eAlerts or an RSS feed to be alerted about new content. The interface is in English.

This repository hosts the research output of the institution. The interface is available in French and English.

A subject based repository providing Open Access to the results of global research in the fields of Atmosphere, Cryosphere, Hydrosphere and Solid Earth. Registered users can set up email alerts to notify them of newly added relevant content. The site interface is in English and contains RSS feeds to alert users to new content.

This is the Institutional Repository of Queen's University Belfast which provides access to the research output of the institution. The interface is available in English.

This site provides access to the research output of the institution. The interface is available in Polish.

University repository providing access to the output of the University of Amsterdam.