Here are a few resources you may find useful:

• Benchley church of Christ
• Mark’s searchable Evernote database – contains notes and outlines for over 250 previous sermons and classes, all tagged according to topic.  (This database has WAY more than what’s on this web site.  If you are looking for a lesson on a particular topic, check here first.)
• Blue Letter Bible – an excellent online resource for Bible study
• Bible Gateway – another excellent online resource
• Apologetics Press – publishers of tons of great study material, primarily dealing with creation, evolution, and evidence for the Bible
• E-Sword – free desktop Bible study software (although you do have to pay to use some translations)
• WordSearch – very nice desktop Bible study software.  This is what I use and highly recommend it.  Just get the cheapest $40 version and then just buy whatever additional books you want for it.
• Bible.ca – tons of interesting articles on just about any topic you can think of.  As with everything you read, though, compare it to the scriptures to see if it is true.  Don’t take this or any other web site’s word for it!