WordPress - think you can get one of their blogs online and working in less time than it takes to read this and they are probably right.
They provide a free service with customisable designs to make your blog look just the way you want it, as well as 3GB of storage (enough space for about 2,500 photos). They are part of a large blogging community and have a stable infrastructure with data centres in Chicago, Dallas and San Antonio. So, as they say; "...if something catastrophic were to happen, like Chicago falling into Lake Michigan or Dallas being hit by a meteor, your blog would be okay." They also offer their service in 50 languages - ideal for the international artist.
To support the service, they occasionally include Google text ads on your blog, however, they say they do that "very rarely". You can remove ads from your blog by upgrading to a paid package which also includes more storage and facilities.