Tom asks: What sites like digg/reddit/techmeme do you use that you find truly useful and pleasant to use?

If you like digg, reddit and techmeme, you will most likely find the following useful and pleasant to use:

popurls.com:

popurls is the dashboard for the latest web-buzz, a single page that encapsulates up-to-the-minute headlines from the most […]

I had a requirement to write a query that should return a concatenation of column values from different rows and grouped by another column. Well, that would be easy if Oracle provided an aggregate function similar to SUM or COUNT for example, but instead of summing or counting, it would concatenate. Alas! There is no […]