Tagsdock - Tag Instagram photos instantly from your iOS keyboard.
Addmefast - Building a website or network on Internet is no longer a hard task but promoting and marketing it is still a difficult task but not impossible.
RiteTag - No idea which hashtags to use? Get instant hashtag suggestions for images and texts on desktop and mobile.
YouLikeHits - YouLikeHits is an online service that brings results within seconds.
Hashtag Suggestions for Instagram - Find the best hashtags for every photo
LikesPlanet - Get Facebook likes, Twitter Followers, YouTube Subscribers, Comments, and Shares.