Books
Open Source Solutions For Small Business Problems (Book)
Various Open Source Business Projects
(All have community versions, but many also have enterprise versions)
(slashes indicate project forks)
Personal Finance
Gnucash, Jgnash
Entry Level Accounting
OSfinancials/Turbocash, SMB Ledger/SQL Ledger
Mid level Accounting/ERP
Xtuple Postbooks, Front Accounting/Weberp, OpenERP
High End Accounting/ERP
Openbravo/Adempiere/Compiere, Apache OFbiz
Vertical Market
CiviCRM, OrangeHRM, Posterita, ProjectPier, ProjectOpen,ReOS, OSCAR
Content Management
Word Press, Drupal, Joomla
CRM
SugarCRM/Tiger
eCommerce
Magento, OSCommerce, Ubercart
Business Intelligence, Budgeting
Pentaho, JasperReports, OpenRPT, Adaptive Planning
Productivity, Workflow
Open Office, Process Maker, DimDim Conferencing
Operating Systems
Ubuntu, Fedora, Opensuse
Hybrid based on Open source components
Entry level accounting
Nolapro – Xamp based with compiled PHP layer
Mid level ERP
Openpro - Xampp based with proprietary application layer
G1 Weberp – Xampp based with proprietary application layer (not to be confused with weberp.org)
High end ERP
Ollwin – Java based on postgresql with proprietary framework and application layer
Commercial, Proprietary SAAS Alternatives
Entry level accounting
Quick Books Online (US only?), Xero, ClarityAccounting
Mid-High level accounting/ERP
Netsuite
Service Industry
Intervals project and time tracking
CRM
Highrise, Salesforce
eCommerce
Shopify
