Feb 28

We’ve an ongoing debate in the office about how effective ads in social networks are for recruitment.
The attitudes run something like this:
“You’re in LinkedIn and probably thinking about your career so it’s a good time and place to get someone’s attention.”
“I’ve never clicked on one of those ads.”
“The jobs displayed in LinkedIn definitely get your attention.”
As the saying goes: “I know half of my advertising budget is wasted, but I’m not sure which half”. Pay per click helps answer that, so we ran a simple test.
We created a Facebook ad for a freelance writer. After segmenting the audience by geography and demographics there were about 20,000 people in our target audience.
Because I’m writing this you can probably guess that we didn’t find our writer.
We created two variants of the same ad as a simple A/B test. The ad was seen by about 4,000 people, on average 5 times in one week. Four people in total clicked through. None applied for the job. Maybe I write lousy ad copy. It was pretty disappointing. We know Facebook can work extremely well for job referrals. You can read a quirky case study here.
Total cost of experiment $1.60. Teacher’s comment: “Needs more practice.”
We ran a test on LinkedIn yesterday. This time for a mobile app developer in a friend’s company. The job had already been tweeted by some high-Klout individuals. There were about 200 page views generated from the twitter traffic. But no applicants. Hen’s teeth and mobile app developers…
Based on the very granular segmentation offered by LinkedIn, we set our ad to a target of 26,853 people. Two variants were created for A/B testing. In one day there were 17,189 impressions and 4 click throughs resulting in one applicant.
Total cost of experiment so far $11.03.
What does this tell us? Not a huge amount sadly because our R&D budget is so low. The laws of small numbers are dangerous.
If we stretched the numbers and spent $1103, buying 400 LinkedIn click throughs, would we have got 100 applicants? That could potentially be very powerful.
If you’re reading this with £10k burning a hole in your pocket let me know and we can find which half is not wasted.
PS: if you’re a mobile app developer check out the mobile developer role here.