A common question on the SSIS forum is "I'm a beginner to SSIS, where can I go to learn more". Alternatively, many people ask very specific questions about how to accomplish their objectives in SSIS and in many ways they are trying to run before they walk. Its important to grasp the basics before trying anything too demanding and that, unfortunately, is the downside to using SSIS. There's quite a steep learning curve with it, particularly for people familiar with the forerunner, DTS.
I don't think there's any place where exists a single list of online resources so I thought I could supply one. The following are all useful sources of information for beginners:
SQL Server™ 2005: Integration Services Virtual Lab
http://msevents.microsoft.com/CUI/WebCastEventDetails.aspx?EventID=1032286838&EventCategory=3&culture=en-US&CountryCode=US
Business Intelligence Upgrade Virtual Lab – Migrating Data Transformation Services (DTS) to SQL Server 2005 Integration Services
http://msevents.microsoft.com/CUI/WebCastEventDetails.aspx?EventID=1032297337&EventCategory=3&culture=en-US&CountryCode=US
TechNet Webcast: Introduction to SQL Server 2005 Integration Services (Level 200)
http://msevents.microsoft.com/cui/WebCastEventDetails.aspx?EventID=1032289998&EventCategory=5&culture=en-US&CountryCode=US
The New ETL Paradigm
http://www.sqlservercentral.com/columnists/jthomson/thenewetlparadigm.asp Creating a Simple ETL Package Tutorial
http://msdn2.microsoft.com/en-us/library/ms169917.aspx
SQL Server Integration Services Articles from Marcin Policht
http://www.databasejournal.com/article.php/1503191
Introductory Videos from JumpstartTV
http://www.jumpstarttv.com/
Guided Tours
http://www.microsoft.com/sql/technologies/integration/tours.mspx
Do you know of any more? If so, let me know by posting a comment.
-Jamie