This doesn't necessarily fall under the "newest" category but I wrote a twitter bot (https://twitter.com/loveapaper) that tweets random papers from the Papers We Love (http://paperswelove.org/) repository as a simple way to find new (to me) papers that might be interesting. Do check out PWL though, it's a great community with chapters from all around the world that meet up to discuss and learn more about academic computer science papers.
