Blog on topics that you know are already POPULAR in your niche.
Here's a quick CHEAT SHEET
Step 1: Find the most popular blogs in your niche
Step 2: Run them through quicksprout to find their most social content
Step 3: Come up with a much better version (up-to-date information, more list items, more graphics, video version, etc etc)
Step 4: Do a backlink check of your competitor's top content and contact those linkers to link to your stuff as well
Step 5: Run your competitors' content through Topsy and get those Twitter users to share your stuff as well.
Step 6: Do blogger and outreach and get other bloggers to discuss your content if they are already discussing similar content.
The key is to STOP WASTING ON BLOGGING DAILY and focus on CONTENT PROMOTIONS INSTEAD