Similar to Cetin's example with the RTF control, you can also use the DHTMLEdit control and work in HTML instead of Rich Text Format. In some ways it's easier to work with the DHTMLEdit control because the entire DOM is exposed. Straightforward to pull out innerText, programmatically change styles, etc. Also can serve the content as is directly into a browser.

>How can I give user the ability to add bold text in a memo field? I'm thinking something to do with tags, but...