Thanks everyone for responding. Here's what I found:<div><br></div><div>geoiq has a nice road layer that is very simple, no icons, just white roads with legible labels. Depending on your application, the simplicity of the acetate road layer can be appealing:</div>
<div><a href="http://a3.acetate.geoiq.com/tiles/acetate-roads/z/x/y.png">http://a3.acetate.geoiq.com/tiles/acetate-roads/z/x/y.png</a></div><div><img src="cid:ii_13098d5a07e408dd" alt="3029.png" title="3029.png"> (45 KB)</div>
<div><br></div><div>With the help of Ant and Deborah from MapQuest I was able to get the URL of mapquest's transparent road layer that's part of their hybrid layer:</div><div><a href="http://vtiles01.mqcdn.com/tiles/1.0.0/vy/hyb/13/2479/3029.gif">http://vtiles01.mqcdn.com/tiles/1.0.0/vy/hyb/z/x/y.(</a>gif|png)</div>
<div><img src="cid:ii_13098d4e2a01e4bc" alt="3029.gif" title="3029.gif"> (25 KB)</div><div>Note: looking at just a couple of these tiles, I'd recommend using the gif format since the tiles are about half the file size and the PNG doesn't appear to have any alpha anti-aliasing</div>
<div><br></div><div>For reference and comparison, here's google's version of the same tile:</div><div>(<a href="http://mt0.google.com/vt/lyrs=h@156&hl=en&src=api&x=2479&y=3029&z=13&s=Gal">http://mt0.google.com/vt/lyrs=h@156&hl=en&src=api&x=2479&y=3029&z=13&s=Gal</a> -- but don't use this URL in an app, you'd be in breach of their license agreement)</div>
<div><img src="cid:ii_13098d92236c0bfa" alt="lyrs=h@156&hl=en&src=api&x=2479&y=3029&z=13&s=Gal.png" title="lyrs=h@156&hl=en&src=api&x=2479&y=3029&z=13&s=Gal.png"> (18 KB)</div>
<div><br></div><div>and MapQuest's satellite tile:</div><div>(<a href="http://vtiles01.mqcdn.com/tiles/1.0.0/vy/hyb/13/2479/3029.jpg">http://vtiles01.mqcdn.com/tiles/1.0.0/vy/hyb/13/2479/3029.jpg</a>)</div><div><img src="cid:ii_13098d6fc34a85aa" alt="3029.jpg" title="3029.jpg"> (19 KB)<br>
</div><div><br></div><div><br></div><div><br></div><div>--Rob</div><div><br><br><div class="gmail_quote">On Tue, Jun 14, 2011 at 10:40 PM, andrzej zaborowski <span dir="ltr"><<a href="mailto:balrogg@gmail.com">balrogg@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div><div></div><div class="h5">On 13 June 2011 19:19, Rob Truxler <<a href="mailto:rtruxler@gmail.com">rtruxler@gmail.com</a>> wrote:<br>
> Hi Everyone<br>
> Does anyone know a map tile web service that produces transparent tiles with<br>
> just roads and their labels and icons on them? I'm hoping to use this layer<br>
> with a background tileset that I already have. I'm open to using anything<br>
> that is not in breach of a terms of service -- a custom mapnik server, a<br>
> yahoo service, bing service, mapquest service, anything that has this<br>
> feature. Does anyone know one? If not, is it feasible to set up a custom<br>
> mapnik server that does this?<br>
<br>
</div></div>Mapsurfer.net had a really nice roads + names overlay, but it's down<br>
for a couple of weeks now, I'd like to know if it's going to be back<br>
myself. It wasn't mapnik based, it was some custom thing. It worked<br>
great for aerial imagery.<br>
<br>
Cheers<br>
</blockquote></div><br></div>