The license for this block was donated by Lucas Anderson. Thanks, Lucas!
No submit button; No problemo.
The Instant Search block form Lucas Anderson is very cool. The first thing you'll notice is there is no submit button. The results magically appear as you type. The add on installs 2 blocks, one is the search component and the second is the results component. This lets you separate the two items spatially on the page. The results will push down any content below the results block as they become available.
You can see more about the creator of this block on his concrete5 web page.
Or you can jump straight in and purchase this block by clicking the icon above.