if you were someone who had a home to sell and you were looking for a realtor, would you choose a person who didn't have a photo on realtor.com next to their listings?
make sure there is a current photo of you on all platforms.
claim your profile on realtor.com because it does "not" cost you a dime to do so.
claim your listings on trulia and make sure you are representing yourself and your brokerage the best you can be.
have clients fill out recommendations for trulia too.
these aren't places you have to visit and post on, but you have to make sure it is updated and correct is all.