Google has said that it hopes to have technology in place by September that would prevent copyright-infringing videos being posted on YouTube, its video-sharing site.

A lawyer for Google told a judge presiding over a copyright action that YouTube was working "very intensely and co-operating" with content-producing companies to introduce video-recognition technology that would detect illegally copied material before a clip is posted.

At present, companies must find illegally uploaded videos themselves and alert Google, which will then take them down.

Philip Beck, who is representing Google in the action, told a judge in Manhattan that the filtering technology would be introduced "hopefully in September". He said that Google hoped the technology would "eliminate such disputes in the future."

The WSJ story says "Yahoo doesn't appear interested in a major deal with Microsoft, say people familiar with situation."

This is supposed to be under embargo until Midnight EST, but heck, it involves us, so you're hearing it here first.

Things are moving very fast at Technology Evangelist, and an amazing opportunity has been presented to us that we simply couldn't pass up. We're extraordinarily busy, so here is just a quick note for now with the news:

Starting Monday, the Technology Evangelist Podcast will replace Don Imus on CBS radio until a permanent replacement can be found.

Shows will be broadcast live from Minneapolis, and simulcast on affiliates now carrying Imus' show. The MSNBC video simulcast remains dead for now.

Let's say you wanted to build an advertising-supported online media business that took in $50 million a year in revenue. How many users would you have to attract to get there?

Probably too many for most people to even try, if the numbers run by Jeremy Liew, a venture capitalist at Lightspeed Venture Partners, are accurate. On his blog (lsvp.wordpress.com), Mr. Liew determined that even the type of site that can get the largest advertiser payments per user would have to be immensely popular before it made that kind of money.

The analysis is "sobering," wrote Tim O'Reilly, the chief executive of O’Reilly Media, a publisher of computer books. "This may be why more entrepreneurs are going for low-investment sites that don’t need an exit but provide 'lifestyle businesses' for their owners," he wrote on Radar, his company's blog (radar.oreilly.com).

That is, rather than seek venture financing and hire a staff, it may be better for one or two people to create a relatively simple site — say, a hobbyist blog for guitar enthusiasts — and use a service like Google AdWords to, hopefully, make enough money to live on.