Since there are so many people on Steemit it can be difficult to be noticed, that's why @yabapmatt created @postpromoter and Steem Bot Tracker

If you find that your efforts aren't being rewarded as good as you'd like, you can promote yourself by sending a minimum of 5 STEEM or SBD to @postpromoter with the URL to your post in the memo. For best results be sure to take a look at the Steem Bot Tracker website by clicking the link above, there you will find information about the bots. When to send your bid, how high or low of a bid to send, etc. Always make sure you check the website first before sending your bid to ensure you aren't overbidding.