| Property | May-2008 | Jun-2008 | % Change |
| Total Internet : Total Audience | 55,705 | 56,220 | 1 |
| Yahoo! Sites | 45,039 | 46,103 | 2 |
| Google Sites | 35,616 | 35,851 | 1 |
| Rakuten Inc | 30,433 | 30,800 | 1 |
| FC2 inc. | 28,297 | 28,653 | 1 |
| Microsoft Sites | 28,797 | 28,593 | -1 |
| NTT Group | 27,987 | 27,843 | -1 |
| GMO Internet Group | 24,138 | 24,159 | 0 |
| Livedoor | 22,832 | 23,217 | 2 |
| Wikipedia Sites | 22,338 | 22,591 | 1 |
| Nifty Corporation | 23,641 | 22,474 | -5 |
| Source: comScore | |||