Here is some interesting data and anlysis by Tom Tunguz (a VC at Redpoint Ventures) regarding the continuing rise of seed capital. In the past few years, there has been an explosion of seed funding as more and more traditional VC's and insitutional seed investors have begun to invest in seed-stage companies. There have been approximately 150 new seed funds established in the past few years.
"If you're a founder or potential founder and looking to raise seed capital, you're entering possibly the most attractive period in a decade to start a business.... As the chart above shows, the amount of capital LPs are investing into institutional seed investors has grown by more than 3x in 4 years to about $3B in 2013. Six-months through 2014, another $3B has been invested. At this pace, seed dollars may grow by 8x compared to 2011."