Just noticed the new version of the Multimap website. I've used it
quite a bit in the past as a source of online OS maps, and now they've
introduced pan, zoom and recentre capabilities (similar to Google
Maps).
The OS maps are still taken from the 1:50k Landranger series only, and
are only available at zoom levels 13, 14 and 15 (to change to OS view,
hover the mouse over the "map" button and click on the popup which
appears). The gridlines are tilted because the maps are using
Mercator projection, and you can't search by grid ref yet (though the
help page says that will be coming soon). A big difference from
Google Maps is that Multimap won't be introducing a programming
interface, so you can't embed the maps into your own webpages. Pity.
Example:
uk8.multimap.commapsOpen ↗
Cheers, Simon
website: http://www.hill-bagging.co.uk/