The Popular Posts gadget will automatically find and display your blog’s posts that have the most pageviews. You can choose whether to display image thumbnails or post snippets in addition to the post title. You can also choose the time period to be used for calculating pageviews and the number of posts you’d like to display.

As per official blog of Blogger in draft

We’ve just added geotagging to the new post editor on Blogger in draft. With geotagging, you can add a location to your each of your blog posts. Just as time stamps help readers find posts from a certain date or time, geotags give your readers a way to browse posts near a specific location.

Adding a geotag to your post is easy. Log into draft.blogger.com, open the post editor, and click the ‘add location’ link below the main text field.

Use the location editor to search, drag, click and zoom on a map to choose and save a location. Google says- “We’ll try to label the location you choose using our reverse geocoder, which looks up a name for a point on the map”. You can also edit the location name by clicking the blue location name text below the search field.

As said earlier, you can see clearly, this feature is integrated with Google Maps:

Today Blogger announced two new style for NavBar to match the style of NavBar with your blog’s theme. “Transparent Light” and “Transparent Dark.” These new color schemes take advantage of the ability of modern browsers to render transparency (a technique known to web designers as “alpha blending”). This allows the navbar background to blend together with your blog’s background color and pattern. The “Transparent Light” color scheme has a semi-transparent white background, producing subtle pastel colors, while the background of “Transparent Dark” is a semi-transparent black that produces a shaded look.

In addition, Blogger simplified and slimmed down the look of all the navbars, so that they will be more likely to harmonize with the aesthetics of your blog.

To enable the Transparent Light or the Transparent Dark navbar, go to Layout | Page Elements, then click Edit next to the navbar widget:

To set this up, go to Blogger and select the blog you wish to monetize on your Blogger Dashboard, and select “Monetize.” This will give you some basic options for configuring ads, and if you already have connected your Blogger feed to FeedBurner, will confirm that the proper feed is being configured. AdSense for feeds will automatically pick the right ad sizes for your users, content, and end medium.

After setup, you will be able to view your AdSense reports (including feed revenue) directly from the Blogger Dashboard, as well as from your AdSense account. Additional feed management options for your feed and feed analytics will be available from http://feedburner.google.com.

When a visitor comes to your blog this page will be shown asking him whether he/she really wants to go to that blog. This will result in huge drop in your visitor count. Blogger provides no way to get rid of this warning page. So removing that Content Warning page from your blog is impossible. To restore your blog the only way is to create a another blog and import all the posts to that blog. So you may think that the traffic will be lost, there is a trick idea to regain your whole visitors to your new blog. The Content Warning page is shown be validating the blog id not the url.

So what you have to do is to change the url of your current blog showing warning page to any, And change the url of the new blog to the old url of your blog. By this way you can restore whole contents and visitors of your  new blog.