List of basic magento extensions

Magent Version > 1.5
1. Easy Tabs: http://connect20.magentocommerce.com/community/magento_easy_tabs
2. CueBlock Zoom: http://connect20.magentocommerce.com/community/CueBlocks_Zoom
3. Vert Navigation: http://connect20.magentocommerce.com/community/RicoNeitzel_VertNav
4. Tell A Friend: http://connect20.magentocommerce.com/community/Mp_Tell_A_Friend
5.Multiple Table Reates
http://connect20.magentocommerce.com/community/Pw_Multipletablerates
6. Magento easy lightbox : http://connect20.magentocommerce.com/community/magento_easy_lightbox
FACEBOOK CONNECT:http://inchoo.net/ecommerce/magento/facebook-connect-magento-extension/
http://www.magentocommerce.com/magento-connect/eitai2001/extension/1468/order-status
http://www.magentocommerce.com/magento-connect/FOOMAN/extension/957/fooman_sameorderinvoicenumber
http://www.magentocommerce.com/magento-connect/i960/extension/1477/admin-custom-shipping-rate
http://www.magentocommerce.com/magento-connect/centerax/extension/2927/automatic-db-backups
http://www.magentocommerce.com/magento-connect/plieninger/extension/2586/editable-order
http://www.magentocommerce.com/magento-connect/MageParts/extension/1621/commercial-extension-manager
http://www.magentocommerce.com/magento-connect/bleulliette/extension/7619/bl_customgrid
http://www.magentocommerce.com/magento-connect/ifuel/extension/7302/seevolution_connector
http://www.google.com/support/merchants/bin/answer.py?answer=188494#GB