Well, John Ressig's excellent del.icio.us super-fast bookmarklet stopped working a while ago when delicious changed their posting method. It used to allow one click transparent posting to del.icio.us - now it leaves you on the posting page with an error message '
A required security token was not received with your form data.', albeit with all the fields nicely filled in, and you have to manually hit post. The horror!
But I'm proud to say I've managed to cobble something together that works the way it used to. It's a bit more complicated though, and requires your own web space (localhost works if you're running a web server on your own machine).
It's a php script that generates a bookmarklet that works just like the old one did. However, instead of sending the information straight to delicious, it sends its information to the script, and the script uses the del.icio.us API to post the item.
The script lives here. Put it in a web accessible directory, fill in the username, password, and (optional) default_tags, then visit the script in your browser for instructions. It's a very good idea to use .htaccess to protect the script from anyone else, otherwise whoever has the bookmarklet can post to your account.
There are some things I don't like about the script.
It stores the password in plain text - I can't figure out how to use md5 or something to authenticate with delicious.
It needs PHP's curl library, which is not always compiled into PHP. In my experience, it has always been available. If it's not available, and it lives on a unix or mac system, a direct system call to curl is possible - something like:
curl -s -u username:password $url >/dev/null;`
I'll keep working on some improvements, but for now it at least works.
This is now rendered useless (and thats a good thing) by the following bookmarklet code. It submits direct to the api, will prompt for user:pass the first time you submit in a session, and automatically closes the post acknowledgment tab, which the whole point of the php script was to avoid. Here you go:
create a bookmark with that as the location, assign a keyword, and then typing
keyword tag1 tag2 ... in the url bar will submit that page to delicious, with any highlighted text on the page submitted as extended.