It's expensive to be poor. Economic, geographic and cultural barriers mean the poor often pay more for housing, goods and services than do middle-income residents. In a series of stories, The Bee examines the forces that magnify money troubles for low-income families in the central San Joaquin Valley.

In an occasional series, The Bee digs into the inner workings of Valley government, education and social programs to give readers a watchdog's view of how their tax money is being spent.

The worldwide economic downturn has struck the Valley in numerous and sometimes unexpected ways. In an occasional series, The Bee presents stories of struggle, change and survival as people wend their way through the recession.

California's water shortage has a powerful impact on the Valley. An occasional series of reports follows the impact of tightening water deliveries on Valley agriculture, and looks at the environmental politics of our most precious natural resource.

Every week in the central San Joaquin Valley, at least 19 people die of diabetes — and the death toll is rising. The disease touches nearly one out of every 10 people who live in the Valley — compared to 1 in 13 throughout California.

The Sierra is a graveyard for aviators who misjudged its dangers -- or simply ran out of luck. The Bee looks at several high-profile tragedies. The report includes audio clips, slideshows, maps, and blog entries and video documenting a hike to a 1942 crash site.

The San Joaquin Valley air quality is among the nation's worst. Valley officials say they are making progress against pollution, but critics says the fixes are too weak and too slow. Explore an interactive report, read the stories by Bee staff, and check your vehicle's emission levels.

An interactive report marks 100 years since the birth of Fresno-born author William Saroyan. There are stories by Bee staff, audio clips of Saroyan and the writer's friends, and photos of Fresno from Saroyan's era. Featured is an annotated, previously unpublished novella.

Bee reporter Tracy Correa writes about her personal journey through the discovery and treatment of breast cancer. Read Correa's story and listen to other Valley cancer survivors.