All of the following are types of custom blocks:
- WellcomeMat Listing
- RSS Article
- Listing - see Custom Listing Blocks
To create a custom block, go to Templates > Manage Blocks > Click Create Custom Block. Select the type of block that you wish to create, give it a title, and click Create. It's important to give your custom blocks really specific names, so you can find them!
In depth tutorial: How to build a custom Listing & RSS Article Block
Market Data Block: