Pone esto en un modulo:
Código:
Public Function LoadWebImageToPictureBox(ByVal pb _
As PictureBox, ByVal ImageURL As String) As Boolean
Dim objImage As MemoryStream
Dim objwebClient As WebClient
Dim sURL As String = Trim(ImageURL)
Dim bAns As Boolean
Try
If Not sURL.ToLower().StartsWith("http://") _
Then sURL = "http://" & sURL
objwebClient = New WebClient
objImage = New _
MemoryStream(objwebClient.DownloadData(sURL))
pb.Image = Image.FromStream(objImage)
bAns = True
Catch ex As Exception
bAns = False
End Try
Return bAns
End Function
Y para cargar la foto:
LoadWebImageToPictureBox(Me.PictureBox1, "http://www.miurl.com/miimagen.gif")