If you are using flickr to store your photos online and you have a blog (ex: blogger or wordpress) there is a way to post to your blog from directly within flickr. Once your blog is configured with flickr you can simply click on your flickr image and select to post it to your blog along with your text about the photo.
Here are the links to get started
to create a flickr account – www.flickr.com
creating a connection between flickr & your blog.
(the image above was taken while on a trip to Rivera Maya, Mexico – Jan 08)