I have a few journalist friends (as no doubt do you guys) and pointed a couple of them at this.
Sure you've seen this already, but you'll probably find that a lot of your target market (well-trained but under-employed journalists) are quite bitter and resentful that they've been reduced to this. Despite the best intentions of startups like these, ultimately they just want someone who'll give them a honest day's pay on a stable basis to get on with what they love doing, writing well-crafted stories.
Not all journalists will necessarily be entrepreneurial sorts, and the ones that are will often be able to seek out geeky friends to help them out online anyway.
With that in mind, there are a lot of sites out there on the internet with too-good-to-be-true sounding propositions on how they can help you make money online, build an audience etc. Once burned twice shy with these sorts of operations - often it turns out they pay you peanuts to be a cog in the wheel of a SEO-spam factory which profits them more than anyone else. Even with the best intentions just to offer people better tools on a win-win basis, it's hard to avoid coming across as scammy or profiteering when dealing with people who're feeling unemployed and vulnerable career-wise.
So, I guess what I'm saying is you might really want to make sure you stand out from the crowd of "join our SEO-spam-factory and make pennies on the dollar for page impressions while we hoard pagerank" borderline-scams, both in the eyes of geeks and in the eyes of journalists who might not be able to tell the difference but just feel wary.
Would need branding and marketing that really speak to journalists in their own language, not in the language of the smug social media consultant telling them what they need to change about the way work THIS week in order to carry on making a pittance online :) (edit: not that you appear to be doing that at all)
(Also, speaking as a geek whose helped out journalists in the past, if the tools being offered lock you inextricably into some company's hosted ecosystem, I'd be a bit skeptical - I'd want tools I could use with an existing website where i have control - take google analytics for example - but I may not be your typical audience)
Anyway hope that didn't come across too negative, I'm glad more people are taking on what's such a tricky problem!