No GK specific knowledge, but I do think this summer is on the early side to meet with D3 coaches (not too early to contact coaches though, and your D can’t meet with DI or DII until junior year). College coaches at any level can speak with your club coach at anytime. Other things:
Fill out the online recruiting questionnaires
Contact coaches by email, send highlight video
Create a twitter account, pin the highlight video at the top. Follow programs and coaches of interest, retweet their tweets.
Make a list of factors that your D wants in a college. She may have two lists of schools–those where she can perhaps play soccer, those where she can’t. Don’t overlook club soccer at DI/DII schools–if she loves soccer this could provide a good balance – some of the club teams play at a high level, higher than some D3 teams.