So you’ve been publishing your blog in order to get some helpful information out there into the hands of those who might need it.  Then a commercial web site decides that they like your voice and are interested in republishing your blog.  That’s great.  But beware of one critical thing.  The tendency to want to increase your frequency of posting is understandable.  You want to keep up with their other bloggers and add as much value as possible.  Just be careful that you don’t lose your voice.  The reason they’re republishing you in the first place.  And make absolutely sure that your posts are relevant – don’t force it.  Try ramping up slowly and don’t post anything that is not true to your original blog “brand”.