if you want to quote part of a post from several different people, you push multiple quote button on the first one, (and 2nd, 3rd etc) and quote on the the last person's post and then type up your reply... saves you from trying to copy and paste from several people. I usually go back and delete everything except the exact bit of the post I am refering to to keep it from being too long
Those of you who use Flickr and do a lot of blogging or post to online forums might want to consider the Flock Browser. Flock is based on Firefox, so it has tabbed browsing, extensions, and all the other good things you've come to expect from that platform.
You can subscribe to your photostream, which will appear as thumbnails across the top of your browser window. From there, you can just drag and drop your images into your posts. You can choose small or medium sizes, and it will create a direct link back to the Flickr page for your photo. The screenshot below shows how it's done, using my blog interface...
For the record, I have no vested interest in Flock, apart from the fact that I have found it to be a very useful tool.