The Twilio Developer Challenge is offering a new category focused on lead generation for the next two weeks. The challenge deadline has been extended to Sunday, July 26th, to give participants enough time to create their submissions. Lead generation involves capturing contact information from potential customers and distributing it to relevant providers in exchange for payment. There are many resources available online that provide guidance on best practices for lead generation, including blogs and industry reports. The Twilio Developer Challenge aims to encourage developers to build applications using Twilio's services, with a focus on creating innovative solutions for businesses.