sometimes it's nice to include a text into an <textarea READONLY> content </textarea> , because is easy to scrool , you may have more then 1 page on 1 single page. My question is ... is this OK for seo ? Will google index and assign the same value for a content if it's inside text areas?!
Till you do not use any frames and iframes, it will be ok. But you should know that search engine doesn´t recognize frames and iframes.