Since then, there has been a virtual explosion of solo repertoire for the euphonium.

Indeed, a virtual explosion of sports media outlets since the late 1970's has diluted the local newspapers' domination of coverage in every city.

Since last summer, there has been a virtual explosion of online beauty retailers, which are estimated to total about 300.

The biggest source of help for grandparents rearing grandchildren has come from the virtual explosion in support groups in recent years.

The virtual explosion of community newspapers and networking newsletters is another example of alternatives to mainstream media.

Over the last decade there has been a virtual explosion of courses in many universities.

"American society experienced a virtual explosion in Government regulation" in the 1970's, he said in 1981.

Since he'd been in medical school there had been a virtual explosion of knowledge in the field.

The result has been a virtual explosion on the plate.

Even if the economy picks up, he said, the "virtual explosion" in Medicaid costs will keep the states in crisis.