I run a few blogs, a personal one, one for my farm, and one for a hobby I love. I am the sole content creator for all three, and for each one I have a different method of posting.
For my farm blog, which is my most popular one, I write posts when I feel inspired to but I schedule them to auto-post once per day. This way I can keep busy with farm things but offer new content regularly to my readers. Updating once a day will give you more traffic, period. The majority of people still visit the blog versus subscribing via RSS, so updating once a day makes sure they know they will get new content when they visit the site. It’s important here to make sure your posts are categorized so they can be browsed easily. Since you can get a lot of new users coming to the site, optimizing their experience increases the chances they will stay and recommend the site to other friends – and new users often want to learn who you are and what content your blog has to offer them, so give this to them right off the bat.
For my personal blog, I write when I feel inspired to and publish that same moment. There are large gaps between my postings and then sometimes I’ll post three times a day. I figure if someone really wants to know about the things I do, they’ll come back to the site, or subscribe via RSS, or read it when they wonder “Hey I wonder what she’s been up to now”. This blog doesn’t have as much traffic but it is read by my closest friends so it’s a win win. It’s also the blog I visually redesign often. I feel it is a more close expression of my creativity and thus I like changing it up from time to time.
My hobby blog is different. It gets its majority of hits through Google searches for terms related to the hobby. So I treat it as an information archive, I don’t care about when my post is published, I just care that it IS posted there so people will hit it when they do searches. And also it keeps the hobby topic out of my main blog and farm blog which is good cause it’s a pretty niche hobby. This is beneficial because those who stumble on the blog are likely a part of the niche hobby market, so they get a blog with 100% content relevant to their interests versus hitting say my main blog and having to only read one category.
In general, just like writing a website, authoring a blog is all about knowing your audience and catering to them as best you can. But above all else, I think the key to a successful blog is providing good content and creating a fun atmosphere. So don’t post once a day if your posts are mundane. These posts are noise. I have a few examples of these posts in my personal blog, back when I felt the need to blog once a day despite nothing of importance happening. Nowadays I’ve come to realize that my blogging time just happens when it happens, that it’s fine if I have a month or two between personal blog posts. For my farm blog, so much stuff happens here that, as I mention, I have a backlog of posts (the list is displayed to visitors, this is great, it excites them about the future content), so it covers days when nothing interesting happens. And even when it’s a boring day, I sometimes take the opportunity to share that boredom itself, telling others how nice it is on a relaxing day, taking a picture of my calm relaxing animals, etc. I know that publishing once a day on that blog is important to keep the traffic flow up, and this is important for me because this will be my business next year, so traffic will correlate with financial success. Similarly, I know that publishing sporadically on my personal blog is OK cause it is not at all a moneymaker and doesn’t need traffic to succeed. So it’s a matter of knowing who your audience is or what type of audience you want to cultivate.