SocialRank - Graph search for TWTR. Filter by interests, location, etc
Iconosquare - Schedule now. We'll post on Instagram for you later!
YesGraph - Boost viral growth by recommending who users should invite
Grum - Post on Instagram from your computer!
Twitter Content Manager - Turn ideas into posts, posts into threads, and threads into followers.
Forestgram - Grow Instagram on autopilot.