A new nonprofit group — dubbed ArtsNow — will seek to promote and strengthen arts and culture in Summit County.The group, which has received initial funding from five area foundations, will launch July 1.Its first major effort will be a website showcasing arts and culture happenings throughout the county, from big concerts and art exhibits to small dance recitals and church choir programs.“The arts and culture community here has proven itself to be a great economic driver,” said Nicole Mullet, the founding executive director of ArtsNow.