What ad networks would you use (Google AdWords, Facebook Ads, Bing Ads, LinkedIn Ads, etc)? Would you use retargeting? How would you allocate the $1,000 budget across these networks? The idea here is you need to find what works so that future advertising budget can create a positive ROI.
The first question you need to answer is who is your audience? Who are you trying to reach with your advertising? If for example, you were promoting a local restaurant, Facebook may be a good choice. If you are trying to reach business owners, LinkedIn may be a good choice (its more expensive though than the other choices listed). Also you need to determine if you want to narrow or segment your advertising. Google does allow you to target your advertising in multiple ways but Facebook targeting is more granular as its users share more details regarding Likes and Share, which is all tracked and packaged for advertisers (although the data is not tied to any particular user).
With all that being said, I like AdWords, Facebook, and Bing. AdWords of course is the most popular so if I had to choose between AdWords and Bing I would gravitate to AdWords (although Bing may be worth you conducting a test). You will probably go through your $1000 budget faster on AdWords than on Facebook so that's something to consider also. I would recommend retargeting but you'll probably need a bigger budget to do the campaign justice. I hope all of this helps. Feel free to give me a call if you would like additional information.