= PostGIS Pre-built Binary Distributions for various OS =
== CentOS, Scientific Linux, Redhat El, Fedora  ==
  [http://yum.postgresql.org/ PostgreSQL Yum Repo] managed by Devrim Gunduz is the best source for both PostgreSQL and PostGIS binaries
  === PostGIS 2.0 ===
  * [http://yum.postgresql.org/repopackages.php PostgreSQL 9.1]
      [http://trac.osgeo.org/postgis/wiki/UsersWikiPostGIS20CentOS6pgdg CentOS 6 PostgreSQL 9.1 Instructions]
  === PostGIS 1.5 ===
  * [http://yum.postgresql.org/repopackages.php PostgreSQL 9.0]
      [http://www.postgresonline.com/journal/archives/204-postgis15-install-yum.html Yum PostGIS 1.5 on PostgreSQL 9.0 Instructions]

== Windows ==
  You'll see PostGIS various versions available on !EnterpriseDb Application !StackBuilder after you install
 [http://www.enterprisedb.com/products-services-training/pgdownload#windows PostgreSQL 8.4-9.1 Installers]
All these should work for Windows XP - Windows 2008 R2

 === PostGIS 2.1 ===
  [http://www.postgis.org/download/windows/experimental.php Experimental Builds]
      These are built for PostgreSQL 8.3-9.2 manually for both 32/64bit whenever any major changes
 ''' PostGIS 2.1 buildbot builds '''
     * [http://www.postgis.org/download/windows/pg92/buildbot PostgreSQL 9.2 (32-bit and 64-bit)]
     * [http://www.postgis.org/download/windows/pg92/buildbot PostgreSQL 9.1 (64-bit)]
     * [http://www.postgis.org/download/windows/pg92/buildbot PostgreSQL 9.0 (64-bit)]
      
 === PostGIS 2.0 ===
 Installers and binaries are uploaded to PostGIS website before they are deployed on stackbuilder
 [http://www.bostongis.com/PrinterFriendly.aspx?content_name=postgis_tut01 PostGIS 2.0 Windows install instructions]
   [http://www.postgis.org/download/windows/#postgis-installers PostgreSQL 8.4-9.1 (32-bit and 64-bit)] 

 === PostGIS 1.5 ===
 [http://www.bostongis.com/PrinterFriendly.aspx?content_name=postgis_tut01_15 PostGIS 1.5 Windows install instructions]

 Installers and binaries are uploaded to PostGIS website before they are deployed on stackbuilder
   [http://www.postgis.org/download/windows/#postgis-installers PostgreSQL 8.3-9.1 32-bit] 

   ''' OpenGeo Suite '''
   Don't use this if all you want is PostGIS and PostgreSQL. Self-contained comes with PostgreSQL 8.4, PostGIS, GeoServer and Editors
   * [http://opengeo.org/technology/suite/download/ OpenGeo Suite Community Edition]   
   * [http://opengeo.org/products/suite/register/ OpenGeo Suite Enterprise Edition]  

== Mac OSX ==
=== PostGIS 2.0 ===
   [http://www.kyngchaos.com/software:postgres KyngChaos PostgreSQL 9.1 Lion and Snow Leopard, 64bit only]

== PostGIS 1.5 ==
 ''' OpenGeo Suite '''
   Don't use this if all you want is PostGIS and PostgreSQL. Self-contained comes with PostgreSQL 8.4, PostGIS, GeoServer and Editors

   * [http://opengeo.org/technology/suite/download/ OpenGeo Suite Community Edition]   for 10.5 Leopard, 10.6 Snow Leopard
   * [http://opengeo.org/products/suite/register/ OpenGeo Suite Enterprise Edition]  for 10.5 Leopard, 10.6 Snow Leopard: like community but with tech support plan and upgrade support.