Web of Science Core Collection covers a wide range of disciplines while indexing scholarly journals exclusively; you can search article footnotes and endnotes using a Cited Ref search. From here, using Journal Citation Reports, you can get details on the top 100 or so sociology journals.
JSTOR covers many disciplines; provides full-text of scholarly journals.
Google Scholar (UK): results include books and articles. For full-text of journal articles, look for "Get Text @ UK"; otherwise, click "Other UK means of access" or go directly to InfoKat or ILLiad. (If you are off-campus, look for Scholar Preferences and set it to UK.)