Are Wi-Fi networks in schools harming our children? Parents in Barrie are leading the call for change to wired connections, because they are convinced that wireless Internet setups at their kids' schools are causing them to become ill -- from headaches to nausea to rashes to memory loss to hyperactivity. These symptoms apparently aren't present on weekends, when the kids aren't at school.

Toronto's "Clubland" is in a major state of flux. Just five years ago, there were about 90 clubs operating in the club district. But after many failed as businesses, coupled with concerted, ongoing residential development in the area, that number has dropped to just 30. City councillor Adam Vaughan is quite content about all of this, but one of his opponents for re-election in Ward 20, Mike Yen, wants Clubland back and is putting the issue on his campaign platform. Also, see this article we published last week.

A construction crew accidentally pierced an 10,000-L underground diesel fuel tank yesterday, spilling an unknown quantity of diesel into the Don River via a sewer. The spill has been contained and authorities are investigating the incident, trying to understand first why the tank was there. No major damage is expected.

Toronto has a whopping 5700 taxis in operation, giving us one of the highest taxi-to-resident ratios in Canada. But among this massive fleet, just 40 are hybrids -- making our taxis among the least green in the world. The problem is creating the incentive for operators to make the switch to hybrid technology, which can save them on operating costs, but also has its costs and limitations.

Yesterday's severe thunderstorms resulted in one man clinging to his life after he was struck by lightning while playing football in an east end schoolyard. He remains in critical condition.

Now that the provincial government has reversed its take on mixed martial arts (or MMA aka Ultimate Fighting) and will allow it to be a sanctioned sport in Ontario, is hockey in danger of becoming less popular? Quebec-born fighter George St. Pierre seems to think so.

And Tomas Kaberle is here to stay for now. The Leafs entertained a number of potential deals in advance of his no-trade clause kicking back in, but none were attractive enough to trade him away. Kaberle is the second-highest scoring defenseman in Maple Leaf history.

Photo: "Rain Walkers" by James Gonneau, member of the blogTO Flickr pool.