There's a number of ways you can market your app: submit to app directories, use AdMob and other ad platforms, "sell" a compelling story involving your app (see kreci's series of "independent developer progress update" articles, he posts them regularly), etc.
Sorry if this is a bit harsh, but: you seem to think venture funding is a way to raise your visibility - which is partly true, but if you can't get the blogs to write about you, how do you plan to get people to write you cheques? Also, unless your app is truly groundbreaking and has potential to grow into something much more (eg what Rovio did with Angry Birds), is there really a point in trying to get funding?