RePec and SSRN
RePec (Research Papers in Economics)	RePEc is a database of publication in economics (http://repec.org/). Each working paper of the Public Economics series is included (as of 2010) in "ad hoc" RePEc directory.
SSRN (Social Science Research Network)	Authors can publish their own working papers on SSRN. The procedure is straightforward: 1) link to http://www.SSRN.Com/update/forms/absubmission.html 2) fill the online form 3) submit the abstract for publication