Blawg directories provide subject guides to current law related blogs.
Use SSRN (Social Science Research Network) to find abstracts on many scholarly working papers and forthcoming papers and an Electronic Paper Collection currently containing downloadable full text documents in Adobe Acrobat pdf format. The eLibrary also includes the research papers of a number of Fee Based Partner Publications.
There are some periodicals which are focused on land use law issues. However, don't limit your searches to just those periodicals with a land use focus. Remember that law reviews which are not subject-specific may contains relevant articles.