1. Liferay
    1. Technical Factbook- Liferay architecture diagram.pdf
    2. http://www.mtc.lu/Evenements-precedents/Portals/presentations/mainColumnParagraphs/07/document_en/mtc-liferay-portal.pdf
    3. Liferay Portal Enterprise Intranets: A practical guide to building a complete corporate intranet with Liferay
    4. Development
      1. http://docs.liferay.com/portal/5.1/official/liferay-quick-start-guide-5.1.pdf
      2. http://www.liferay.com/community/wiki/-/wiki/Main/Frequently+Asked+Questions
      3. http://www.liferay.com/community/wiki/-/wiki/Main/Liferay+Maven+SDK
      4. http://www.liferay.com/community/wiki/-/wiki/Main/WebDAV
      5. build process - no maven?
      6. Communication between portlets and other applications (business layer)
      7. http://fir.altervista.org/portale/tutorial/liferay.html
      8. Normal development cycle for custom portal?
      9. Liferay - CRM
      10. http://www.liferay.com/community/wiki/-/wiki/Main/Overview+of+resources+for+portlet+developers
      11. http://www.liferay.com/community/wiki/-/wiki/Main/How+to+create+a+simple+portlet
      12. http://www.liferay.com/web/guest/community/wiki/-/wiki/Main/Sample+Portlets
      13. http://www.liferay.com/community/wiki/-/wiki/Main/Adding+search+capabilities+to+a+portlet
      14. Webshop integration
      15. http://www.themeswiki.org/Developing_Templates_and_Themes_using_Liferay_Portal
      16. Connecting to an External Database and Building Services Against It
      17. Best Practices for Applying AJAX to JSR 168 Portlets
      18. http://content.liferay.com/document/Liferay%20Themes.pdf
      19. how to modify portlet wizard to support struts 2
      20. http://www.liferay.com/community/wiki/-/wiki/Main/How%20to%20configure%20https%20feature
    5. Wiki
    6. Configuration
      1. http://www.liferay.com/community/wiki/-/wiki/Main/Control+Panel
      2. http://docs.liferay.com/portal/5.2/official/liferay-administration-guide.pdf
    7. Production Deployment
      1. http://www.liferay.com/web/guest/community/wiki/-/wiki/Main/Staging
      2. http://electures.informatik.uni-freiburg.de/docs/0.1/dev/electures_ext/multipage/ch04.html
      3. http://www.liferay.com/web/guest/community/wiki/-/wiki/Main/Hosting+providers
    8. Upgrade process
      1. http://www.liferay.com/community/wiki/-/wiki/Main/Guidelines+for+Writing+Upgrade+Processes
    9. Blogs
    10. Java Portlet Specification
    11. Portlets and Apache Portals
    12. http://developers.sun.com/portalserver/reference/techart/jsr168/
    13. http://blogs.sun.com/portal/
    14. https://portlet-repository.dev.java.net/
      1. https://portal.dev.java.net/
    15. liferay drools example
      1. http://www.liferay.com/web/guest/community/wiki/-/wiki/Proposals/New+Portlets
      2. http://thinkinginsoftware.blogspot.com/
      3. http://code.google.com/p/nestorurquiza/wiki/DroolsDataTransformation
      4. http://vaadin.com/wiki/-/wiki/Main/Integration%20Experiences
      5. http://www.tools.com/about/liferay/
    16. HBS
      1. Hotel
      2. Address
      3. Country
      4. Room
      5. Rate
      6. Feature
    17. UI
      1. http://woork.blogspot.com/2009/01/10-beautiful-web-ui-libraries.html
      2. http://alloy.liferay.com/demos.php
      3. wicket
        1. http://wicket.apache.org/meet/features.html
        2. http://www.laughingpanda.org/mediawiki/index.php/Wb-FAQ
        3. http://code.google.com/p/qwickie/
      4. vaadin
        1. http://vaadin.com/home
        2. http://demo.vaadin.com/sampler
        3. http://vaadin.com/wiki/-/wiki/Main/Integration%20Experiences?p_r_p_185834411_title=Integration%20Experiences
        4. wicket vs vaadin
          1. http://vaadin.com/faq
        5. databinding
          1. http://vaadin.com/tutorial/-/page/databinding.container.html
          2. http://vaadin.com/wiki/-/wiki/Main/Using%20Hibernate%20with%20Vaadin?p_r_p_185834411_title=Using%20Hibernate%20with%20Vaadin
          3. http://dev.vaadin.com/svn/incubator/hbncontainer/src/com/vaadin/data/hbnutil/HbnContainer.java
        6. vaadin separation of concerns
          1. http://www.streamhead.com/vaadin-forms-domain-objects/
          2. http://vaadin.com/book/-/page/datamodel.html
      5. YUI
  2. AndroMDA
    1. http://www.andromda.org/docs/whatisit.html
    2. Architectural manifesto: MDA in action
    3. Application Architecture
    4. 10 steps to write a cartridge
    5. integrate androMDA with java portlet (JSR168) and Liferay
    6. http://www.mdahatter.com/labels/andromda.html
    7. http://www.andromda.org/docs/andromda-documentation/andromda-getting-started-java/java/index.html
    8. http://www.codeproject.com/KB/cs/intro_to_andromda_1.aspx
  3. Business Rules
    1. http://www.agilemodeling.com/artifacts/businessRule.htm
    2. Defining Business Rules ~ What Are They Really?
    3. http://openrules.com/examples.htm
    4. Introduction to business rules
  4. MDA and Business Rules
    1. http://www.edmblog.com/weblog/2007/04/mda_and_busines.html
    2. http://www.infoq.com/articles/Agile-Business-Rules-Taylor
    3. http://www.infoq.com/news/agile-business-rules-tools
    4. http://www.infoq.com/articles/Rule-Engines
    5. http://www.lcc.uma.es/~av/RM-ODP/Presentations/BusinessRulesWithMDA(andODP)-02-10-05.pdf
    6. http://www.semanticcore.org/Docs/MDA%20and%20SBVR%20v2.pdf
  5. MDA
    1. http://www.acceleo.org/pages/mda-and-acceleo/en
  6. Tutorials
    1. http://jspgeek.com/assets/download/Spring_Framework_Tutorial.pdf
    2. What Web Application framework should you use?
    3. Java SASH (Struts Axis Spring Hibernate)
    4. Enterprise Examples For JEE
    5. The Java EE 5 Tutorial
    6. http://code.google.com/p/nestorurquiza/w/list
  7. Other
    1. http://www.ehow.com/how_2364237_implement-system-open-source-products.html
    2. Hotel Booking Reservation System for Joomla
    3. http://sourceforge.net/projects/cultbooking/
    4. http://www.isopensource.com/software/ios-reservations-3-hotel-booking.html
    5. Hotel Reservation System(HRS) sample using Oracle Business Components for Java (BC4J) Framework
    6. Java Cookbook : Hotel Reservation System using JSP
    7. http://www.openresort.org/
    8. http://sourceforge.net/search/?words=hotel&sort=score&sortdir=desc&type_of_search=soft&pmode=0&fq[]=trove:198
    9. http://www.fileguru.com/apps/hotel_reservation_system_in_java_source_code
    10. http://www.fileguru.com/Hotel-Booking/info
    11. http://www.fileguru.com/Comfy-Hotel-Reservation-For-Workgroup/info
    12. http://www.mypdfsearch.com/search-pdf/domain+model+for+hotel+reservation+system+in+software+engineering/
    13. http://www.scribd.com/doc/21453171/Hotel-Reservation-OOD
    14. http://www.methodsandtools.com/archive/archive.php?id=22
    15. The Repository Pattern
    16. List Repository Design
    17. List-Based Repositories
    18. Business Data Catalog
    19. Product Catalog
    20. Integrating Line-of-Business Systems
    21. The Service Locator Pattern
    22. Consuming Web Services with the Business Data Catalog (BDC)
    23. http://www.lightningtools.com/bdc-meta-man/default.aspx
    24. Dynamic Application Configuration Solution
    25. http://www.yworks.com/en/downloads.html
    26. http://code.google.com/p/ant-script-visualizer/
    27. http://www.ibm.com/developerworks/views/java/downloads.jsp
    28. http://www.scribd.com/doc/21453171/Hotel-Reservation-OOD
  8. Search
    1. "web based" dynamic UI builder
      1. http://www.sigmawidgets.com/products/sigma_visual/VisualJS/index.html
      2. http://www.webblocks.eu/designer/index.php
      3. http://www.sencha.com/forum/showthread.php?28133-Ext-2.0-Gui-Designer
      4. http://tof2k.com/ext/formbuilder/
    2. wicket vs vaadin
      1. http://vaadin.com/faq
    3. databinding
      1. http://vaadin.com/tutorial/-/page/databinding.container.html
      2. http://vaadin.com/wiki/-/wiki/Main/Using%20Hibernate%20with%20Vaadin?p_r_p_185834411_title=Using%20Hibernate%20with%20Vaadin
      3. http://dev.vaadin.com/svn/incubator/hbncontainer/src/com/vaadin/data/hbnutil/HbnContainer.java
    4. vaadin separation of concerns
      1. http://www.streamhead.com/vaadin-forms-domain-objects/
      2. http://vaadin.com/book/-/page/datamodel.html
  9. Tools
    1. www.eclipse.org
      1. http://amateras.sourceforge.jp/cgi-bin/fswiki_en/wiki.cgi
    2. www.hibernate.org
    3. www.jboss.org
    4. www.apache.org