Keep it simple
The first and the most important advice i have to give beginners is keep your blog simple.Don't overdo it.Don't add lots of fancy widgets which is not useful.Don't use too many colors or too many font styles.It will make your reader hate your blog.They will never come back.So keep it simple.
Importance of links and connections
It is very important to be social in online if you have a website or blog.This means keep visiting other blogs,comment there if you like it.Discuss about some topic(which you like) in online forums or comment boxes.Let the world feel your presence.(But Remember, Give respect,Take respect-Dont be a bully).And don't forget to leave your blog url there.
Not too many ads
Don't put too many different ads if you are a beginner.Try Google adsense for some months then you can get into other ad networks or monetizing programs according to your traffic and type of readers.
Interact with your readers
Interact with your loyal readers.Reply to their comments,thank them.Ask their opinions about something.This will make them feel to come back.Put a poll on your blog.Whatever you do,make sure no comments are left behind unanswered.
Don't change the topics too often
Don't change the topics of your posts too often.For example don't post the details of the latest Ferrari car model in next post if you talked about the rare snakes of amazon in previous post.People may not like this.You will lose the niche readers.
Hope my tips will make your blogging life better :)
Some of the most helpful books for beginners in blogging are given below,highly recommended by 'Ad-it'.