BLLDB (Bibliography of Linguistic Literature)
The BLLDB is the online version of the Bibliography of Linguistic Literature (BLL) and contains about 391,000 references to linguistic publications from 1971 onward. It was created and is still updated by the "Sondersammelgebiet Allgemeine Linguistik" of the university library Frankfurt (Main). The BLLDB includes references to monographs, journal articles, articles in edited volumes, dissertations and manuscripts. It is therefore a good starting point if you are searching for literature on a specific topic but are not aware of any publications yet. Another intriguing feature of the BLLDB is the direct link to the EZB (see below). Once you have found an interesting journal article, BLLDB checks if your local library has a subscription for the journal the article was published in and links you directly to the full text. [cf. the information section on the BLLDB homepage]
EZB (Europäische Zeitschriftenbibliothek)
The EZB is a search interface that offers access to academic full text journals. Since the journals are filed according to subject, the EZB allows you to browse through different journals in the topic areas of "English and American Studies", "Linguistic and Literary Studies" and many more. You should note, however, that you cannot search for individual articles within the journals via EZB. For this, you need to consult the search engines of each journal. If you are in the initial stages of a literature search, you should rather consult a bibliography (e.g. BLLDB, see above) than the EZB. Once you have established which articles you need (and know which journals they were published in), the EZB is a powerful tool that leads you to the full text of the article directly. Whether or not the full text of the article is available depends on the subscription of the individual libraries. Full text access is symbolised either by a green (free access) or a yellow dot (national subscription or subscription by the university library Oldenburg).
ORBIS (Oldenburger Regionales Bibliotheks- und Informationssystem)
ORBIS is the online catalogue of the University Library Oldenburg. All publications, print versions of journals and multimedia devices (such as DVDs, software that comes along with books, etc.) is listed in this catalogue. If you are looking for a specific publication, ORBIS should be the first catalogue to consult. If you have any questions about the library, the catalogue or literature search in general, the library offers guided tours and instructional courses: link.You should be aware, however, that ORBIS only lists independent publications (such as books, journals or edited volumes). Individual articles in journals and edited volumes are not listed in the catalogue. In the early stages of a literature search, it is therefore recommendable to use the library catalogue as well as a bibliography (such as the BLLDB or printed versions that can be found in the library) in order not to miss out on important publications on the topic.
GBV (Gemeinsamer Verbundkatalog)
The GBV is a catalogue of seven German federal states participating in the Common Library Network (GBV). The database covers the holdings of over 32.7 million records of more than 400 GBV member and associated libraries with over 70.7 million separate catalogue entries of books, conference proceedings, periodicals, dissertations, microfilms and electronic resources. If the publication you are looking for is not available in your local library, the GBV is the catalogue that you should consult. You can search for the publication and will be given the information which German libraries are in possession of the book. All titles listed can be ordered via document delivery service ("Fernleihe").
KVK (Karlsruher Virtueller Katalog)
The KVK is a meta search interface which allows users to access both library and book trade catalogues via the www. Among others, it includes catalogues such as SWB, GBV, ZDB, HBZ, Australia National Library, British Library Catalogue and the Library of Congress catalogue (USA). Whether you are looking for bibliographic information of a specific publication or searching for a publication by a specific author, the KVK is the place to go. But note that unlike the BLLDB, the KVK includes references to all kinds of disciplines and is not limited to linguistic publications only.
The following is a list of some interesting journals in the topic areas of pragmatics, interlanguage pragmatics and sociolinguistics (and which are accessible via the university network). If you are looking for literature in these areas, it might also be a good idea to consult the journal search engines directly and see if the journals include articles on this particular topic.