I had a script from google in my sig, but it doesn't go any more.  I know it was kind of a fat tag, as it was designed for a column.

It was for my google reader shared items and was very PG as well as PC on my PC.
What it did was take the last two items that I marked as worth sharing, so it was a bit like a news thing.
But it doesn't work.  I have disabled scripts from running when editing/updating my sig.

*big sigh* I miss it.