This plugin is an evolution of my <a href="https://wordpress.org/extend/plugins/lug-map/" rel="ugc">Lug Map</a>.
Plugin uses post types, and markers are saved as post comments. Some of the features:
<ul>
<li>Admin can add markers or allow visitors to submit them (akismet helps on moderation)</li>
<li>Reverse geocoding and ajax loading of markers</li>
<li>Multiple maps can be created and used in the same time</li>
<li>Dynamic sidebar of markers can be generated</li>
<li>Very customizable</li>
<li>Uses jQuery <a href="http://www.blocsoft.com/bmap/" rel="nofollow ugc">bMap</a></li>
</ul>
Some screens: <a href="https://i.imgur.com/FFaYH.png" rel="nofollow ugc">1</a>, <a href="https://i.imgur.com/7LFcX.png" rel="nofollow ugc">2</a>

Simple Google Maps

An easy way to create google maps with markers and embed them in your posts. Uses post types!

rdsteed

By default, the sort order for queries in WordPress is descending. This will produce posts in reverse chronological order, the desired result for most blogs.
In some cases, it may be desirable to have posts in ascending order. When activated, this plugin changes the default order from descending to ascending. This affects all queries (home page, archives, dates, etc). Deactivating the plugin returns the default order to descending.
IF YOU DON’T LIKE THE RESULT, IT’S THE THEME
How well this works out varies from theme to theme. Depending on a theme’s navigation labels for posts, things may or may not make sense. If labels are “Earlier” and “Later”, things will seem backwards. Some themes make sense either way. For example, in the “Twenty Fifteen” theme, “Previous” is above “Next”, suggesting list order rather than time.

Default Sort Ascend

This plugin changes the default order of queries generating posts from descending to ascending.

Simple Google Maps vs Default Sort Ascend