Assalam-o-alykum wa Rahmatullahi wa Barakatuhu.
Please contact Masjid Ebad AlRahman at 727-546-3162 after Salat al-Maghrib on Wednesday June 17th, 2015 for information regarding the moonsighting and beginning of the month of Ramadhan. Alternatively you can look for an announcement on this page Insha Allah.
Please read Understanding the moonsighting by Dr. Yasir Qadhi for some clarity on this subject.
Here is a great Khutbah on Ramadhan 2015 action plan by Ustadh Nouman Ali Khan of Bayyinah Institute.