Roving Uhub photographer Andy Sellars took this around 8:40 a.m.:

I was just on my way to work and saw the Somerville emergency response out in force on Somerville Ave between Porter and Union, near the Samba Bar. They were putting someone on a backboard. I didn't see any cars involved, and there was a very concerned cyclist talking to the police, so I think it's a bicycle accident.

Boston Biker reports the launch this week of Chain Reaction:

Boston's Only Mobile, After-School, Youth-Run Bike Shop!

Of course, where some people see an exciting way for Boston to cycle into the 21st century, lawyers see the potential for new business:

Boston's Hubway bike-share system will undoubtedly lead to an increase in the number of cyclists sharing the road with automobiles. Unfortunately, this increase in the volume of cyclists on the road will likely also lead to an increase of bicycle accidents in the City of Boston.

Boston Police are looking for a gray hatchback, possibly a Prius or a Mazda 5, for a shooting this afternoon on Harold Street near Homestead Street in Roxbury.

Police say the vehicle may have some scratches on the front from where it hit the bicycle before the shooting.

Police say the victim, 20, was taken to Brigham and Women's Hospital and is expected to survive.

And this guy, spotted by a T worker at Back Bay station today, has probably just exceeded it:

Channel 4 reports a fatal crash involving an 18-wheeler making a right turn and an unnamed bicyclist at Mass. Ave. and Vassar Street last night.

Photo by Matt Tomlin.

Not everybody straps a tree on the top of their car.

Liam, who lives in Forest Hills, explains his support for a proposal to replace the crumbling hulk of an overpass by the T stop with an at-grade crossing, rather than with another overpass:

Cambridge Police tweet about a collision around 5 p.m. at Windsor and Main streets:

Bicyclist transported to the hospital w/ serious injuries after she was struck by a truck making a right turn.