I have recently started following the posts on Mashable!, a website devoted to news about social media and technology. Jobseekers interested in finding employment in social media should check out the Mashable! job board which has postings both for their company and employers across the country.
Here is the direct link to the Mashable! job board: http://jobs.mashable.com/a/jbb/find-jobs. Sort by location to group the Illinois job postings together.