EDIT: Also a lot of construction going on right now at Universal near the parks can be attributed to Halloween Horror Nights and them making the 8 houses and props to go in them. In addition to that this year is the busiest Universal's Soundstages have ever been so you might be seeing construction going on for sets that are used in some sort of shoot. If you could specify what construction you are talking about, thanks.
Universal Orlando is conducting a survey online that asks a lot of questions about a possible new blue sky waterpark concept.
Disney's Animal Kingdom
Disney's Hollywood Studios
Disney California Adventure
Universal's Islands of Adventure
Universal Studios Florida
Universal Studios Hollywood