Splitting blog postings

My challenge now is to work out how to split these blog postings so that you don't have to read pages and pages of stuff on topics you are not interested in. I want to work out how to put in a taster paragraph and then put in "Read more..." for those that want to read the whole thing. So far I have found a few web postings telling me how to do this with HTML, but so far none of them have worked. When I work out how it will be obvious from the look of the blog and I'll post my solution. Read more...