Information on journals are available on the journal’s own website or through the society that administrates the journal. For example, the journal The American Naturalist is administered by University of Chicago Press, so its website is hosted on the University of Chicago Press journal site (http://www.journals.uchicago.edu). Other journal hosting sites are specifically built as journal repositories, such as JSTOR (https://www.jstor.org/), a major digital academic library. Searching the website using the JSTOR search engine will provide information on journal volumes and issues for all journals from JSTOR. Another example is Scopus (https://www.elsevier.com/solutions/scopus), a citation database that provides details on journal metrics and ranking, such as Impact Factors (see ‘How are journals ranked?’). Using journal metrics, authors can determine which journals may be best suited for their work and follow the links on the database to the specific journal’s website.
Another major source of journal information are online university libraries. Universities are paid subscribers to journals and thus have subscription access to journal content, including volumes and individual papers. Searching the online library of your university will give you unrestricted access to journal content, where you can browse the journal website to find tailored information.
Practical example for Life Sciences
Within the life sciences, information on journals can be found on the journal website, the publisher’s website, i.e. Wiley Online Library, and citation databases, such as Scopus.
Practical example for mathematics
Information on journals can be found on the journal website. In particular, look at the ‘guidelines for authors’ and ‘frequently asked questions’ sections. There may also be information on the publisher’s website and review websites/search engines such as the American Mathematical Society website.