From what I've seen, Oodle probably has the most streamlined process for posting a property for sale. You don't have to navigate through page-after-page of details to post a property. Property sellers can fill out one simple submission form to get their entire listing compiled and posted in a matter of seconds (and it's especially fast if you already have the listing information prepared and you're just copying it from another source).
I’m learning the hard way about the hidden costs of buying empty land. Unless utilities are already there, it can be VERY expensive to run them from the street to the building site. For example, one parcel we looked at was about 1000′ feet off the main road where utilities are located. To run city water, gas, electricity, and cable could run anywhere from $10-100 per foot! Multiply that by 1000 and I better understand why developers say that they spend the same on running utilities as they do on the land. It may cause us to reevaluate our goals and possibly shift to buying a property that already has a rundown home on it.

This question is out of my realm...but I'm curious why you decided that the current developer is not interested in your property? If his equipment is close... it might not be that hard to deal with your property. Since you already have a house on it, I can assume there's sewage, water, electricity, etc... So your land doesn't need to really be developed, but they could build something nice on it.
Selling lots and land has its unique challenges and strategies when compared to selling a home, and these are several of the ways you can boost your selling efforts. Whether you’re just starting the process of selling your lot or land or you need to re-energize your efforts, we hope these tips help you. So take action and find a way to reach past the home buyers and get to that pool of active lot and land buyers.
Do you know if the developer had a local brokerage do the sales for the project you mention? You might want to contact the developer, but I'd also suggest you speak with a Realtor first to get a market analysis for the value of your property. Then decide if you want to put your property on the market or if you want to explore contacting either the developer or the owners of properties adjoining yours to see if there is interest.
Something I appreciate about the property listing platform on this site is that you can enter in A LOT of deal-specific details that real estate investors are going to care about, as explained in this video (e.g. – costs associated with owning the property, cash flow details, zoning and uses, etc.). I also really liked the ticking time clock at the top of each listing, as it helps instill a sense of urgency/scarcity for anyone who wants to take advantage of the deal.
Consider your own needs when pricing, and understand how pricing could impact buyers’ interest. When selling real estate, you sometimes have to choose between getting the highest price and possibly selling quicker. Plus, your pricing may be influenced if you need to sell for financial reasons. In addition to your own situation, pricing your property ultimately requires an understanding of the land market as a whole, why people are buying lots or land in that area and who these people are. A good real estate agent with land expertise can help greatly in this process.